because it's one thing to just be in love with your roommate/best friend but imagine if one of you was destined to kill the other but she is actually totally into it and in fact, want you to kill her, she wants you to kill her so so bad but you absolutely refuse and go against fate itself to not kill her and she pounds and your chest with tears in her eyes crying "why do you have to love me? why can't you just let this play out how it's supposed to?" and as many times as you try to explain it she'll never understand all she can do is draw closer to you and force her way into your orbit until you collide with one another and destroy each other in a world killing/world making supernova