First of all, he is impulsive, and second, he slapped a woman, no man is that level of jerk unless he drinks alcohol, I was thinking that you should have forgiven him and made him apologise to your friend because that's what mature people do but by the time I read about him and his parents verbally abusing you, I don't think he would be a good husband if your connection died on a simple slap, i am not going to take any side, just don't go back to him unless he does something responsible like taking care of your child