I know it is hard constantlylearn, MY ex fiancé was like that, I had to change my number because of him. He was a bad alcoholic. hopefully he can go to meetings and come back to you. But you do have to remember he will change if he quit, you may think you know him but truly you don't. my BF right now is going to AA meetings making his life better his decision. I have fallen in love him all over again. So keep positive. He may need something drastic in his life to realize to change. I wish I could be more help. I'm sorry