I'm obsessed with my abuser
Why do you think your obsessed with you abuser?
I think I'm still in love with him
I'm sorry you were abused, but abusive relationships are very dangerous. They take advantage of your low self-esteem and loneliness, and you always keep coming back. You need to break the cycle and get some therapy or else you might get murdered by them.
I don't care and I like it when he hurt me.
I just really think you should see a therapist over this. It's not healthy to like when someone hurts you.