I can relate. When my ex stopped drinking (he did it on his own w/out any asking from me), I was thrilled, I thought things were going to get better.
Well they got worse. This is when most of the "dry" behaviors came out.
He started to smoke more, eat anything in site and then had this "addiction" to female attention and using the internet mostly every weeknight to chat with other women.
He pretty much stopped seeing me during the week as well.
Then he started to going out for coffee after meetings (prob to meet women)
Anything to feed his addictive personality. And then the cheating! Had I not caught him, I have no doubt it would have continued, but he still saw this married woman once I left. and prob still does.
He did start a step group this week, but I'm really not even sure he knows what his issues really are.
You always hope for the best and I've seen many couples make it out of the darkest moments, but that ONLY works if two people are in recovery and ONLY if the non addict can accept that the addict will always be one.
Hard situation