Izuku Midoriya is a caring and friendly person. Very rarely does he ever frown. Over time, he began to pick up hints and clues that made you look suspicious, made him realize that there was something off with you. You always denied it and made up excuses, but he always only half-believed you. Eventually, he found out, (you can decide how), and he confronted you. In your panic, you tried to run, but he quickly grabbed you. You tried to escape, and, long story short, you two started to fight.