Tough situation. But I think you know in your heart of hearts what the answer is.
I have a friend who drives me to the grocery store once in a while. When he does, I go to a liquor store and buy him a six pack.
He drinks a few here. I've been sober over eleven years.
It's funny. Even though we used to drink together, he never knew the extent of my drinking and I was telling him today in very graphic terms how I was at the end.
It was a little weird because he still drinks a lot.
Anyway, you know yourself better than anyone else. I would go with my gut feeling.