Call me cynical or negative but I don't see there being a ton to be grateful for in his being sober. If he isn't drinking but the behaviors haven't changed, then he might be "dry" but he isn't of right mind and he isn't a partner with you in the way a healthy, in recovery person would be.
I felt when my AH stopped drinking everything would be solved. That was wake up call #1. He was still angry and resentful and a jerk. He just wasn't drinking. That's not recovery and he is STILL an alcoholic and behaving like one. Don't let him tell you that it's you and nothing satsifies you and that he's not drinking so what's the problem. The problem is that he is an untreated alcoholic who just happens to be dry.