My brother is alcohol-dependent, Nightingale. Has been all of his adult life. He has lost jobs, lost money, lost a wife, lost everything really, because of the drink. It is a progressive condition. It only gets worse unless the drinker embraces sobriety and recovery.
I have posted this before, and no doubt will again. Life with an addict is a hard, hard road. Once you are in, it is very difficult to get out. They are the most manipulative group of people on the planet.
I would run like a scalded dog away from this man. Though he seems kind and caring now, that will change. Bet on it.