Loll, If you care one iota about him. Leave him to his recovery, it is a solo venture. Being in a relationship now would derail all of his efforts to get his life back on track. Give him at least 12 months.
My XABF is in a horrid spiral downward due to the difficulties his betraying himself. He started using me and our relationship to justify his drinking. I am afraid for his life. Although I love him he must be alone with his recovery and his program to get and remain sober. Will he and I ever have a relationship? It depends on his success in his program.
Please let him go.