Why do people treat people so badly

Just came back from a fellowship at a uni I used to go to. My crush goes there, infact she invited me to go there. She told me she is the Bacenta leader and leading the fellowship today. I'm new to all this so sorry if the terminology is wrong.

Stuff got deep when she started talking about her ex and I was sitting next to her like "how can someone treat someone so badly to make them cry everyday"

Making me wanna crash out fr and it just annoyed me sm. I just want to hug her as tightly as I can. But idk, I just want to treat her right.

I'm going to call her tomorrow and talk about today and bring up the topic about relationships, I think we are friends rn but she open to the idea. There is only one way to find out