He is white knuckling it, if he is not involved in a strong recovery program, he most likely will fail.
Alcoholics/addicts are master manipulators and will lie thru their teeth to get what they want.
If he is sober and working a strong recovery program, you might consider taking him back until then, I'd stay put.
Read all the stickies at the top of this forum, and, the Family & Friends of Substance Abusers, everything posted applies to both, alcoholics & drug addicts.
I would also suggest that you attend Alanon meetings, it will help you to better understand codependency and his disease...which there is no cure for.