As I posted on your other thread...
Have you considered attending nar-anon meetings? There is nothing you can do for him, but it would be good for you to get educated on what you can do for yourself if you decide to stay in this relationship. His recovery is his own business, and his actions will show you whether or not he is sincere in what he says. As you have come to know, the words of an addict are meaningless. They can talk a really good game, but it's the follow-through that you should pay attention to.
In the meantime, you will learn how to detach from whatever he does, and to put your focus on what is best for you.