I'm not a problem drinker myself, but I have a friend who is. Basically, his whole social life revolves around the bar, so when I want to hang out with him, that's where I go. That wasn't a problem in the "old days" but he's since gone into rehab and then fallen off the wagon again.

Here's my dilemna: He still hangs out at my "usual bar" (I go maybe twice a month). I don't know whether it's right to go there and hang out with him anymore. Technically, it's just that we're both at the same bar, but if I start hanging out with him there, I couldn't shake the feeling that I'm "drinking with him" and making his problems worse.

What do you think? Is this a reasonable concern?