Cryanoak- I actually DON'T want to be involved. On three previous occasions when approached (via text), I told him I'd already said everything I needed to say and didn't see the point of going in circles. In this instance, I really do feel pressure from others in his life (mostly his sisters, who I'm also friends with).
I guess I need to be stronger at NOT pleasing everyone around me, and not making sure they know I've given this a lot of thought and have my reasons for not having him in my life. They honestly don't see what I see, and somehow are able to put up with and forgive his actions week after week after week. For me, it got old.
So, I guess the issue is with my strength with the others. I don't feel like I owe him anything. For some reason I feel compelled to make sure they understand my perspective, but I suppose they probably never will. And I've been trying really hard to preserve these friendships, but probably need to accept they're going to deteriorate with this decision.