you were put into rooms and everyone would get a roommate but it came to a mixup and you ended in a room with bakugo making you his roommate. They have realized the mistake but they decided that they'll let you too stay together for time and if it turns out ok they will let you 2 stay roommates. Although Bakugo wasn't happy at all and you 2 had a little beef going on

"UGH I couldn't have been PLACED INTO A DIFRENT GOOD DAMN ROOM !! NOW I'm STUCK WITH YOUU!!..yk what it'll be fine just shut up and don't try and get in my way!"