I know its frustrating - to watch someone you care about in a runaway train heading for a cliff . . . but unfortunately all you can do is be there for him, if and when he wants it.

I really believe that things will work out as they are supposed to if given time (sometimes, it just takes a VERY long time). Unhappy and dishonest relationships will break on their own volition, wether close friends interfere or not. And its the close friends that will still be there when the smoke clears.

I think he knows you care for him and are concerned. I don't think you should have to "play nice" - be yourself, there is no reason that you have to be her best friend (he's got his live with her, and his own life without her that you can be a part of). Just don't let her get to you - don't give it the emotional energy or time (you have better things to do)

And remember that for some people - the only reason they learn they are being dumb is to get burned!

*Hugs*