How is the quality of your relationship? Is he good to you? Are you happy (or would you be if you didn't know about about the drinking?) Is he a good husband and father? Or is he remote, surly, emotionally absent, crabby, missing family events, spending money you don't have, etc...?
I'm not saying to accept it if everything else is good. ALcoholism is progressive always, so even if it's good now, it won't always be. But you have time to figure out what to do.
I'm so sorry you have to come back.