AITA for making my SIL leave my wedding?

I got married a few weeks ago to my husband, whom id been dating for nearly 8 and a half years beforehand.

I never got along with my fiance's sister, shes always been the spoiled brat type. Like, she gets away with literally everything and gets nearly everything handed down to her. It doesn't help we all went to school together and she was primarily one of my bullies, but her behavior up to now has lead all of this to happen, and on my wedding day no less. His sister is 32.

I'm gonna preface this by saying: Navy Blue was my gown color, the bridesmaids, what SIL was, were supposed to wear white. She had agreed to it as well. The other color was Gold; and the entire wedding was nautically themed. I also asked the bridesmaids, including SIL, to not wear anything extremely revealing (as SIL tends to wear very revealing clothes that literally sometimes have private areas of herself show out, she's not a curvy girl, so it's not the clothes hugging her too tightly, which even if that were the case that would somehow be infinitely better than her wearing what she does and the way she does currently).

The day before the wedding, SIL informs me that she bought a very pretty dress for the wedding. I tell her that that's great and if she wouldn't mind sending me a picture, which she does. The dress was white in the photos, and she was in the dressing room it appeared like when the photos were taken. I told her the dress looked beautiful, because I really did think it did look pretty, and she typed me a message about how excited she was for the wedding the next day.

The next day comes around and the wedding is about to get started. SIL was about an hour to 2 hours late on arrival, so we initially started the service without her. We waited as long as we could.

Around the time when the pastor asks "does anyone object the groom or bride" or whatever, she comes bursting in (oddly at the most convenient time) in a RED and BLACK dress, that literally hugged her so tight her boobs looked like they were gonna pop from her chest at any second. At any shift of the chest, a nip slip would have been certain. The whole damn service looks to see my SIL, standing in the damn door, crying about how 'we started without her' and how 'it took her forever to find the perfect dress.'

Regardless, we continue the wedding because I don't want my special day ruined, and I decided to put the fact she didn't even have the right color on and the fact she arrived nearly two hours late to the whole thing behind me.

That was until she touched my fucking cake.

We hadn't even done the cake cutting yet, and I see my SIL helping herself to TWO slices of the cake my husband and I have not been able to cut yet, as we were waiting to cut it later in the evening back at our hotel for our own private time to celebrate our marriage, but no. She was helping herself.

I decided to march up to her, I pulled my husband along the side with me as well. He was equally upset that she was eating the cake that was supposed to be for us; we had a timed eat event that was themed after the hobbit meals and dinner was the last meal. (None of the meals were so big and fattening that it would be unhealthy I promise lol). I look at her and ask her what shes doing, to which she just looks at me and says

"I didn't wanna wait anymore. I got bored."

At that point, I did pull her hair and push her around a bit before my husband's friend pulled me away and my husband ushered her out the door. My husband doesn't think AITA, but his family says I should have handled it differently even if she did several things she was told NOT to do, she did it anyway, and immediately attempted to shift it to being bored.

AITA here? Was I unjustifiably upset?

Note: Everything down to a T was mentioned and explained several times before the wedding. The colors, what would be happening with the meal after the service, what would be on the menu per say, and so much more. She literally and intentionally does this ALL the time, whether it's a formal or casual event.

What are these acronyms?

oohhh, pokemon games or your personal pokeverse for the meme?

OOOOH, this is going to be really hard, since there are so many characters that I’m sure I’m going to forget some, but I will try! Also, these two things are kind of one in the same for me, because I adapt the games to my personal ‘verse as they come out. So like, for me, even if they’re technically not, the Red and Green we see in the Gen VII games would be, in my ‘verse, my versions of Red and Green. (And Leaf is also there, but she was drawn to the Aether Foundation because she was curious about Ultra Beasts . . . oh Leaf, what did you get yourself into?)

But hmmm, okay, let’s see---

Zinnia --- MY GIRL, MY LOVE, THE LEGEND, THE LOREKEEPER. BEST CHARACTER IN THE GAMES HANDS DOWN, 500/10, BEAUTIFUL, FANTASTIC, ASTOUNDING, A++++, WHY DOES NINTENDO KEEP TREATING HER LIKE DIRT, I’LL NEVER UNDERSTAND.Okay, now that that’s out of the way, I love Zinnia. Okay? I really love Zinnia a lot. She’s hands down easily my favorite character across the games, period, and I am beyond salty that Pokémon Generations denied her an episode. Like, honestly, my salt for this exceeds even my salt that they used Blair instead of Lea in the B2W2 shot, and that’s saying something. (Even if it just barely surpasses it. Just barely.) I love everything about Zinnia. I love that she has the best Trainer Class in all of the games (LOREKEEPER, how cool is that?!). I love that she comes from what is heavily implied to be an aboriginal race of people in the Hoenn region, that this is just a part of her character but does not define her (and that this is even lampshaded, with this exchange:STEVEN: “You’re the---!”ZINNIA: “The Draconid, yup. But you can just call me Zinnia.”This is after she has introduced herself, so Steven really has no excuse---and Zinnia calls him on it in a way that feels completely natural and flows with the script. Love it. I love her sass, and her snark. I love her determination. I love that she knows she has to sacrifice herself and she tries to look for another way, suggests that the others come up with another way, but when she sees that there isn’t she does what must be done anyway because she knows she has to. And I relate to her, too, in her grief over Aster; Shiloh died shortly after the ORAS games came out (they released in November of 2014, and Shiloh died in my arms on 9 January 2015), and so I was playing the Delta Episode right around that same time. Zinnia’s speech about the original Aster hit me hard, becuase that is exactly how I felt about Shiloh, right down to:“We were always together, in good times and in bad. I loved her . . . I loved her with everything I had, but . . . I still lost her.”Word for word, that’s how I felt about Shiloh. Her grief, her desire to do anything to see Aster again---I empathize, oh so deeply.I love Zinnia. I love everything about Zinnia. Fandom hates her, but of course they do, fandom always hates my faves. But I love her. I just wish Nintendo could show her the same amount of love. //salty4life

Leaf Tyler --- I am always, always, always going to have a soft spot for Leaf, the girl who I honest to goodness wish had been in the original Kanto games (and she was originally going to be, but it was either a time issue or a cartridge space issue or both that kept her out), the girl that I know eight-year-old me would have latched onto with a grip so tight you’d think she had rigor mortis on top of being frozen solid. I’ve of course fleshed her out far beyond anything Game Freak has done, but I love every bit of this girl that I’ve created.She’s whip-smart, she’s incredibly determined, she’s headstrong when it comes to what she wants and what she chases after. She doesn’t let the criticisms or condemnations of anyone get her down (and boy have there been a lot of those given her insistent belief in legendaries that the rest of Kanto---or at least her home town of Pallet---scoffs at). She’s incredibly passionate about what she loves and nothing, not even eldritch abominations or legendaries that can and will kill her, will frighten her away from her goal. She is a myth hunter who is determined to be a lorekeeper in her own right (even if not in the same way Zinnia is), and she chronicles everything she knows in extensive journals. Professor Oak probably suggests at one point that she try her hand at being a professor herself in an effort to get her to settle down, but nah. Nah. There are ruins to be spelunked, there are eldritch abominations to chase. She’s not stopping for anything.Professor Oak just sighs.

Whitlea “Lea” Fiona Fair --- How could I not mention my girl Lea? Lea, like Leaf, is rather headstrong and determined---but she’s always determined about all the wrong things (well, usually). This is a girl who sees life as a giant adventure and, if it isn’t, then she will make it one. She hates sitting still. She eats nachos for breakfast. She legitimately traded her Pokédex for a special Zelda edition DS Lite because she wanted to play Spirit Tracks, and she has forbidden Bianca from telling Cheren because Cheren will tell Professor Juniper and then Lea will get in trouble. She’s being followed around by a Victini she calls Thing because Thing imprinted on her, thinking she’s its mom, because she accidentally woke it up in Liberty Tower. She has dubbed N “Captain Unova” because he never understands any references. The only books she reads are comic books, she loves sports and games, won’t tolerate it at all if you fuck with her friends and, as of the latest chapter, is feeling seriously conflicted over this whole “pokémon liberation” dealio.Basically, Lea is a helluva lot of fun to write and, since I know all of Reversi even if I haven’t written it, I know all about her character development and think it’s great. I love Lea. I’ll always love Lea. And I still think she has the best design out of any of the female protags, hands down.

Mortimer “Morty” Matsuba --- I’m never going to ever stop loving Morty. Morty is a character I always loved due to his design, but I really fleshed out his character when writing liveblog drabbles of SoulSIlver back in the day, and I absolutely love him for being the deadpan snarker straight man to Eusine’s . . . Eusine. But even as he is a deadpan snarker who legitimately believes Eusine will get himself arrested one day, he still loves Eusine with all his heart and will always bail him out of whatever trouble (or prison) he gets himself into. (He would just rather Eusine not get himself into that trouble / prison in the first place.)

Eusine Minaki --- And of course I can’t mention Morty without mentioning Eusine. Again, I fleshed Eusine out a lot, and bouncing him off Morty was so easy, their banter came so naturally. So much of it was childish bickering despite the two of them being adults, but that’s what happens when you’re childhood best friends. As energetic and ridiculous as Eusine can be at times, however, he has a serious side to him as well that I like, and I took Lyra stealing his dream from him a lot more seriously than the game did. I like to think my version was better, even if it would definitely need a re-write now.

Gladion --- Gladion was a character I knew was going to be a fave from the moment I saw him, and while I still think that his development was rushed and poorly written in-game (and while my version of Gladion is far more temperamental, heh), I still adore him and his incredible theme music oh so much. The way Gladion reacted to the abuse Lusamine doled out on him is very similar to how I’ve reacted to the abuse I’ve gone through in my life, and so I find Gladion to be a pretty relatable character---including and especially when it comes to his scathing sarcasm, because damn. I can in fact be that way at times if someone aggravates me. There have been times when I’ve taken no hostages, I can freely admit that.

N Harmonia --- I love so much about N. He’s such a complex character, and perhaps one of the most complex characters Game Freak has written into their games---which is why it makes me sad that fandom tends to focus on only one or two of his traits and ignore all the rest. N is many things; he’s an older teenager / young adult who was abused and sheltered for pretty much his entire life, but he’s also an older teenager / young adult who was raised to believe that he is a King and a Chosen One and acts accordingly. N is one of those characters that is very difficult to write correctly, but I think he’s brilliant all the same. I love him. (And the fact that he is just as headstrong, blunt, and passionate as Lea makes them delightful to bounce off one another, let me tell you.)

Brendan James Anderson --- Brendan, son of Petalburg City’s Gym Leader Norman, is as surly and salty as they come, and I love him for it. He’s absolutely that moody teenager who is salty about anything and everything, and while some of his woes are understandable (e.g. he didn’t want to move to Hoenn, he’s salty at his dad for separating from his mom over work, et cetera), the truth is that he will complain endlessly about stupid things as well, and he damn well knows it. He likes writing poetry and reading, which is why he named his mudkip Moby Dick . . . aaand his mudkip appreciates this about as much as you would expect, so. Brendan complains about their vitriolic best buds relationship frequently (especially as Moby, once a swampert, routinely bucks him off mid-Surf and sends him careening into the ocean). I love writing Brendan because, personally, I find the fact that he is perhaps even saltier than the oceans that surround Hoenn to be hilarious. His complaining isn’t whining so much as it is just bitching, and sometimes you just need a salty af protagonist to get you through. (Also, it makes for a nice contrast with his cheerful neighbor, May Birch.)

Iris de Nadder --- A DRAGON PRINCESS, I love Iris, I love her so much, and I wish we got to see more of her in the original Black / White games, though I do love what we do get to see. I love how she protects Bianca after the incident in Castelia City, and though I definitely upped that scene in Reversi (wherein she flat out kicks the shit out of the Plasma grunts assaulting Bianca, mocks them for getting their asses kicked by a twelve-year-old girl, and sends them packing), I do still love what we see originally. I see Iris as being unwilling to take anyone’s shit, but also generally being upbeat and friendly, because honestly, a human’s life is too short to spend being prickly and unpleasant. Dragons? They live ages. But humans? Practically babies from birth to death in a dragon’s eyes. Iris only has a human lifespan, so she’s gonna live it to the fullest and encourage others to do the same. She’ll encourage others to be their best selves while being her best self, and I think that’s awesome.

Karen Noir --- Finally, the last spot will probably have to go to Karen of Johto’s Elite Four. Not only does she spout the truest words in any Pokémon game (that you should battle with the pokémon you like), but I love how I fleshed her out with regards to her relationships with Morty and Eusine. (Basically, she was Morty’s rival in childhood, but Eusine felt that Karen was stealing his BFF, so he and Karen actually have a rivalry in which Karen mostly just makes fun of him and Eusine gets angry, and meanwhile Morty just honestly doesn’t want to know what’s going on, he just wants the yelling to stop.) Plus, I mean, she’s a total badass and has a houndoom named Lilith that can and will fuck everyone up, so. I love her.

This is super long but I always have a lot of Pokémon feelings, so. It’s to be expected, I suppose!!