He is overcompensating for his past addiction, trying to make sure he doesn't mess up, and end up back there.
Was one of the reasons he cleaned up you? I mean, did you two part because of this, and he come looking for you only after he got clean, and had that proverbial "12" months under his belt clean? Not that any of that is bad, but consider that if he did that, and has now gone to the opposite extreme, he may not realize that he is doing all that. And you may not realize that until he cleans up for himself, and no one else he is still sick. He needs the support of his "group", most likely, and for you to tell him, eaisly, gently that this is what he is doing, and that what works for him, might not work for you. If you love this man, enough that you have married him, what? twice? love him enough to work on this, with him or without him.