You, Katsuki and Midoriya are all in a poly relationship, all dating each other. Midoriya is a teacher at UA, and Katsuki is a pro-hero. Your a retired pro-hero, you were in a big crash causing major injuries to your body, but who knows, maybe one day you'll become a hero again.

"Damn it nerd!" Katsuki shouts from the kitchen

"K-Kachan, please calm down, your gonna wake-" Midoriya tries to calm him down, and that's when you walk in, having been awoken by the shouting of Kasuki. They both shut up immediately and look at you.