To leave or not to leave?

I feel stupid posting this for strangers but I have no one to talk to here. My husband is controlling and jealous to the EXTREME. We met when I was 17, Im now 25, and I let him play the father role, my fault, I know. We marrd 3 yrs ago and he has gotten worse. He dictates who I can talk to/see, where I can go, what I can wear, even what I can talk about. I've NEVER done anything to warrant distrust, but he cant stand to c me talking to guys. If I try to put my foot down about it he blows up in my face. He loves me, I love him, he cant help who he is, he says he'll chg but nvr does. He doesnt respect my feelings or emotions, only sees his side of things and refuses to meet in the middle. He takes care of me financially & physically but leaves my heart feeling broken and alone. Do I stick it out and sacrifice who I am and the person I want to be or leave him and wallow in my sence of failure and betrayal and spend who knows how long feeling like a piece of sh*t for hurting him?