you and Katsuki were inseparable and that caused you to develop feelings for him, you knew he didn't feel the same way so you never even tried but once y'all got into UA he started having feelings for Uraraka (she's mean to you) and started hanging out with her more soon enough they got together and you got jealous but never did anything since you knew how he felt, one day you found Uraraka saying she was gonna break up with Katsuki and she only dated him because he was cute WHAT DO YOU DO?!?!