I'm fascinated by how much my ex's girlfriend hates me.
Why are you so fascinated by this? Why does she resent you?
She thinks I tried to go after her boyfriend.
It's not right to like it when someone dislikes you. It seems like you are focusing a lot of your energy on your ex's girlfriend and taking pleasure in the fact that she dislikes you. That's not a healthy way to live life.
You are right but it's a bit fun to piss her off, and I'm sure she doesn't mind me basking in the fact that she dislikes me.
It sounds like you're using up a lot of energy thinking about this. Thats energy better used towards something productive.