katsuki has always bullied. He physically and emotionally hurt you. You feel into a deep state of depression. Not that he knew of. But out of nowhere you started missing school all together. Your parents were worried sick, they got you a therapist, and tried everything they could. But nothing.

your parents were having friends over and their child would also be coming. They said you could 'be friends'. You walked out to see who them and saw who made you depressed, katsuki.