One thing that was very interesting to me in this episode is the way Eddie was just... not joking about Buck's love interests.

That stuck out.

Usually when Eddie talks to Buck about his love interests, it's with an edge of fond exasperation, teasing laced around his gently delivered truths, but there was none of that this episode. Buck told Eddie he went to see Natalia and it was like something switched. Eddie's entire affect changed when Buck started talking about Natalia. He went from being loose and easy (as loose and easy as one can get when standing at a grave) to being... not combative, necessarily, but visibly actively not wanting to engage in conversation about her either, and it's not...

It's not even jealousy!! We joke a lot about Eddie and jealousy, but it wasn't that at all. It was a fatigue that comes with silence, that comes with holding your tongue, that comes with keeping secrets. Especially when Buck said that he feels like Natalia sees him. That look Eddie gave him immediately after? That was pure hurt. That was him saying I see you too, I've always seen you. But he can't say that. He can't say that, because to say that would be to say so many other things about the way he sees Buck, and to say so many other things would mean to have to unstick his tongue from the roof of his mouth about the ONE thing he's been holding onto ever since he was shot.

I don't know. I don't know, but I think Eddie taking Buck on a date and I think about how Eddie left his son—his heart—in Buck's care so they could bake cookies together (which becomes profoundly more significant in an episode where Christopher was talking about baking smores with his mom), and I think about Kenny saying Ryan has been doing some very nuanced work in the back half of this season, I'm like

Oh. Oh. I see it, thank you. Loud and clear.