I'm not sure there is a prescribed time to tell someone you are a recovering addict. Obviously sooner is better than later if your decision to remain in a relationship hinges on them not having had a problem with alcohol.. investing time in someone can do all sorts of things to our decision making.. does it factor for you? Had you known before embarking on a relationship with him, would you have never started something? Or would you have continued?
You know now. So, the question is.. what do you want to do?
Tx