fayerody has a very good point... I've lived with addicts my whole life, and I myself am an addict. I believe had my mother kicked us kids out at some point or another, we would have turned out differently maybe. But instead my mom allowed my brother to use in the home so he wouldn't get sick or upset with us and he ended up dieing in my arms. My sister doesnt live at home anymore, but she did move in with a drug dealer, so she's still in active addiction. When I flubbed up and relapsed, my parents told me if I didn't get the help I so desperately needed, I'd have to leave our home. That made me determined to stick to my sobriety. I had been on the streets before, I didn't want to go back.

Sometimes you have to show "tough love" to your children. Right now he'd dependant on you and knows you will allow his behavior, so he's going to continue to do what he's been doing, boozing and getting high. There comes a time when a mother has to put her foot down and say, "Enough is enough. I love you but I'm not going to love you to your death." Think about it, please.