Hmmmm.... For some reason I see in his not so distant future telling you that he's only able to stop smoking pot by drinking. Uh huh. This dude ain't sober-he's an addict in massive denial. ( this so reminds me of one of my exs best friends-his wife told him to stop drinking so much by smoking more pot-I wish I was kidding. Denial and denial by both parties!)
You've done the right abd smart thing to get him out of your life and your child's. Does he see your child?