been there, seen that... basically dropping being friends with him is lame, i couldnt do that, maybe if he a casual friend i guess but i stick by my friends thru some of their hard times. If he indeed chooses to stop going to meetings then i can see stopping association with him, and eventually he will realize he wants to come back cause the world is pointles (may take years, trust me i have seen the amazing happen and someone start to come back) or they will just stay out there and you can just hope they will come back :/