His behavior is extreme? For thousands of years adultery was punishable by death. That being said, I think you two need to divorce or share open marriage but your fucked either way. He may never forgive you for a short time but you will never forgive yourself, and he shouldn't be expected to if you can't. There is also no reason to think that by admitting what you did it makes it less horrible. People confess cheating to get it off of their chest, to selfishly make themselves feel better and hurting the other person instead. Besides, if you are such a sex addict you'd do some electrician you met after getting gas on to light your ass fire, you aren't going to be faithful in the future either and your doomed like everyone else marrying this year in the year of the dog, i mean its called that for a lot of reasons. chinese spinals.