What to do? Can he change?

Hello,

I have been involved the last 8 months with a man who I love and adore. With that said, we have been through an awful lot this year. A month into our relationship I became pregnant. He was supportive at first, buying books about pregnancy and such but when started to become insecure. He became verbally abusive and started questioning the paternity and questioned what I was up to all the time and threatened to take me to court if we broke up. Three months later I decided to terminate the pregnancy and we broke up.

A month after that we got back together and things were great for awhile. The controlling behavior and jealousy began again a month after that. He monitors my friends list on Facebook, questions me daily on trivial things such as "Alice, why were you really 30 min late from work?", "who were you really texting?", etc. It got so bad that we ended up having a huge fight and he got so frustrated that he grabbed my neck and pushed me into the wall. I left for about two weeks and am now starting to see him again. He says he's going to make changes, but that with him, trust is earned, not given. When he asks about my Facebook I immediately get angry, or when he questions me now, I blow up. He says I need to handle these things without blowing up and help him to trust me completely. Am I being a person? Do you think he truly can change? Or should I simply move on?

He's been better, but it's only been a few weeks. He and I both have terrible tempers and perhaps it is merely the wrong match.