Said that because I never talk to him that he can't sleep.
If that's what he said, I think it's great if he sleeps on the couch in his sponsor's home for a while. Maybe his sponsor can explain to him that "never" and blaming your spouse for not being able to sleep doesn't really reflect a good insight into taking responsibility for your own emotions -- something that is crucial to recovery.
Sorry if that sounds harsh, but I think being separated until he has more recovery time under his belt and you can both better evaluate what is left and what can be done with it sounds like a fairly good idea under the circumstances.