What should I do?

My wife is very abusive. I take what she gives, cause her good points far outweigh her bad points, and she isnt abusive that often. However, last Sunday night we were at her parents house for a bbq. We were all sitting around talking and joking around. I said something that was insulting to her, in jest, not seriously meaning what I said, and everyone should have known it. She was holding a hot spatula and slapped me with it, and I just snapped. I dont remember doing it, but I punched her in the face. Then me and her father got into a fight, and later I was arrested for domestic violence. She has left me and is staying at her parents now, and I just got out of jail this morning. I love her very much, and I didnt even realize that I was going to do anything until after I did it. It was like it all happened in a split second and I was outside of myself watching it. I know im probably going to serve some time, as I deserve to, but I dont know where to go from here. Any advice?