J&M-
I am betting you are well rid of him. I am sorry you hare hurting. I am praying that you heal very fast. Just do be careful because you are very vulnerable right now. Give yourself time to heal before getting involved with anyone else. I am sure you have learned a lot about what you don't want next time.
As for your AH what better way to avoid looking at himself than to jump right into another relationship.Nobody who is truely healthy does that. Looks like good amo for you in court though cause it is still probably called adultery. I hope you have retained a lawyer!!!