Run. Far, far away. This guy isn't great. He's a loser. It's only going to get worse and you'll be sitting there wondering what went wrong, because you ignored all the signs and still thought you could fix it. He's an addict who doesn't think he has a problem, and nothing you say or do is going to fix him or your relationship. Get out now before you're completely drowning and don't know which way is up. Don't marry him and for the love of all things holy, don't ever get pregnant by him. Trust me, I've got a condition that makes it nearly impossible to get pregnant, and I've got three kids of my own and two stepchildren. Relying on that to keep you without child is like expecting a cardboard box to float in a flood.