I don't want to be friends with a guy/ potential romantic partner who misled me and ended up with another girl
How did he mislead you?
I wish he wasn't such a jerk to butt into my relationship
It is not right that he mislead you and interfered in your life but now you shouldn't do the same with his. It is good to cut off contact and not be friends instead.
I can't forget what he did. I still think that he's a jerk though.
You'd be better off without him so leave him alone. It's not good for your mental health to get consumed by revenge.