Welcome, Zap. It's awful when we realize that our drinking has destroyed a relationship we cherish. I don't know if that's the case with you, but rather than sober up in an effort to win him back -- which may or may not work, that depends entirely on him -- sober up so that, being mentally and healthy inside yourself, you'll be a fine catch for anyone.
By pegging your recovery to his acceptance and taking you back, you risk ruining your recovery in the event that he doesn't.
That is why we have to do it for ourselves and no one else: we can't control what other people do, we can only control ourselves. And for me, that means not drinking.