How do I tell my child’s father I need space?

Erykah • I love myself some pecans 😂😂

I am not sure if I wish to continue this relationship with him. We have crashing personalities, and we’ve been together for about 4 years. It’s so hard for me but I’m not sure if I honestly want to be with him, and I feel the only way I’ll figure it out honestly is if I ask for space. I feel so terrible, but we have such a dark past, I have scars that still havnt healed: him cheating (not physically), emotional, physical, verbal abuse, controlling behavior, etc. it got to the point where I was becoming a crazed maniac. Getting angry a lot and saying the most mean things to him. Chasing him around, throwing his stuff outside, hittin his car, because he can be a serious asshole. I realized that this wasn’t truly my character. I was becoming a stereotype. I feel happiness sometimes with him, but the way he talks to me sometimes like I’m his daughter, doesn’t make me feel like I’m a partner. We’ve been through so much together but there were more dark times than happy times I’d say. He is 5 years older than me. I’m turning 21 and he’s 26, so maybe our mentals are at different points? It’s just so stressful y’all. His anger issues, pride issues, but he’s still trying so hard to work for me and our child, i feel bad that I want space from him. How should I feel? :,(