To stay or not to stay, that is the question..

Should I allow my boyfriend who abused physically and emotionally me for two and a half years fix his mess? His words come off as genuine but I do not trust him. I still love him. I feel like I’ll be losing part of myself by leaving but I’m terrified of being hurt again. I also feel like I’m not going to go anywhere in life being with him. This will be my first big break up.