You never trusted anyone because of your past. You don't like people and don't care what they think of you. You just like being by yourself. You have a couple of online or long distance friends, but you almost NEVER tell them anything personal. But since you joined UA, there has been one boy, Izuku Midoriya (who Bakugo and Uraraka calls 'Deku), took a liking to you and started to follow you around. You hated it...at first. He was persistent on becoming your friend and would often encourage you to socialize and scolded you for your aloof, or 'rude', behaviour. But one day, you both got into a heated argument because you had fought someone. You were quick to insult him when he scolded you, but you regretted it.

Deku: tears up "Fine! I'm DONE! Why do I bother trying to be your friend when you're just rude to me?! What have I ever done to you?! But fine. If you really feel that way about me, then I'll stop trying to care about someone who clearly hates me!"

At that moment, you realised how much you had hurt him.

The next day, he completely stopped talking to you. That's when you realised how much you actually missed his company, but you refused to admit it