How do I leave?

How do I leave my fiance? We live together and have an almost 1 year old. It's become emotionally abusive and he said he isn't willing to go to counseling. I have a friend ready to help me leave this week, and I plan to stay with her for a bit. How can I parent our child together without being emotionally abused? *He is a very good father. I won't let my daughter grow up in a house hold where either parent is abusive though. I need advice please.