The question is, how can I help him, is this relationship is good for him?
I think the question you should be asking yourself is if this relationship is good for you? Put yourself first cos he will. If he truly wants to recover a relationship should be on the back burner for at least a year. ...maybe longer. He needs to focus on himself. He always will need to focus on himself even when he in recovery. Recovery is a hard road with many pitfalls and he has to want to do it regardless of you. Am sorry if I sound negative but life with an alcoholic is not an easy one no matter what stage they are at.