I can't help you with the relationship advice, but I'm in full agreement with Freedom from the alcoholic standpoint.
It's important for you to know the truth. This guy is not a recovering alcoholic. He's a guy who has stopped drinking for a few months. Your description of his behavior is textbook for untreated alcoholism. Unless there is a serious dedication on his part to treat this problem, the outcome is not promising.
What you do with this information is entirely up to you.