Ok, so I think we all need to stop feeling so sorry for this 'poor man'.
He pursued you for months, had sex with you, then listed all your perceived defects after he'd got what he wanted?
Then hit you across the face?
He's a piece of shit. He was abusive to you. You telling him you wanted to kill yourself was fucked up in its own right and actually an act of aggression but I can kind of see where it came from (not condoning it but can see it in context).
Stick with your therapy and keep thinking it through.
Right now you feel infatuation but it won't last. It's a message to you from your subconscious - a powerful one - that you are very very hooked up in being treated badly and being attracted to dangerous people.
Think it through, think it back to your past, your childhood. Take it apart. Make sense of it.
You're not in love. Your emotions are trying to tell you something - he's just a vehicle for this breakthrough.
Hope you get all the support you can.