Should I get involved with this situation?
I suggest you just follow your husbands lead and not talk to the guy anymore, and don't worry about trying to "save" their friendship. If he can't look past your husbands' religion, then that's just pathetic. I don't really understand that myself, but whatever. People can change alot in 12 years. So, pretty much just be with your husband on this... he probably already feels awful having a friend act like that, and the last thing he would probably want is someone talking about it.
They'll either stop talking altogether, or be friends again in time. Guys are cool like that
yeah, what Roth said. guys dont fight unless they 100% have to. if they can aviod it, they will. good luck!
If they are really friends, there won't come anything between, neither gayness, nor a woman, nor religion. Real friendship stands above that.
I also think you should probably not involve with this. It's something between the two guys.
What you CAN (or should...) do is talking to him about that "poppers" problem. Drugs ain't no good.