You two are secretly dating. Bakugou was a jock. And Izuku was a bookworm. Bakugou was tye most popular in school. While izuku.. Wasn't. Bakugou was always pretending to be mean to izuku. As it was free time while you both sit down. You (izuku) hear some1 stand up and say:

"HEY FREAK (izuku) WHY DON'T YOU CLEAN MY ROOM WITH YOUR BROCCOLI HEAD" as everyone laughed at that comment. And bakugou speaks up: