Welcome to SR! Glad you found us.
Just from reading your post, it sounds to me like there are several red flags already popping up and you have only been seeing this guy for 4 months. Another thing that bothers me is that he says he "fired" his sponsor and left his home group because the sponsor didn't want him dating. Well, first of all, if his sobriety is so important to him, he would not do that just because he doesn't like what his sponsor says. Secondly, saying that his did that FOR YOU is a huge crock! He is trying to guilt trip you and that is manipulative behavior and something that alcoholics are famous for.
At the end of the day, only you can make the decision on whether or not to continue seeing this guy; however, if it were me, I'd back away from the relationship before I had any more time or emotions invested. It doesn't sound like this guy is serious about recovery regardless of the fact that he doesn't drink around you, says he goes to meetings every day and says he goes out on drunk calls.