Abusive relationship.

I think I need to leave my relationship. My partner is verbally and physically abusive. I still am so in love with him though and he is a great father to our daughter. I don't know what to do or how to go about it. I know it seems impossible but when he isn't angry he's an amazing boyfriend and dad, but he just loses control so badly sometimes. It's like he is two different people. We are suppose to be seeing a psychologist next week, and he has admitted to all his issues and I know they are a result of his abusive upbringing. I just don't know if it's even possible to change such behaviour though. I don't want this life for my daughter.