<human>: Can you summarize the given text in a few sentences?

I won't go into the horror that was my recent breakup.  One only needs to look at my posts to see that my gf [F28] of 4 years completely napalmed anything that we ever had and shit all over any chance at a friendship.

I'm moving on with my life but now I have a new problem.  My ex is very good friends with my buddie's fiancee's and gf. I'm talking to the point where they still go out to dinner and girls nights out.  I'm somewhat of a private person and have only vented about my ex anonymously here on /r/relationshipadvice.

However, now I'm getting questions from some of these girls via email asking how I'm holding up, asking me out for drinks to "catch up" and other attempts at getting me to talk about what happened with our relationship.  Of course they know we are no longer together but they have no idea of the details that caused it and the she-devil they believe to be their friend.

These are the only friends my ex has in this city and so I'm struggling with what to tell these girls when I do see them (especially after a couple of drinks).  If I tell them exactly how it went down they may refuse to hang out/talk with her.  They may also think I come off sounding like a bitter ex bf.  On the other hand, I kind of want them to know her true character and the kind of person she really is.
<bot>: Getting questions about the end of my relationship from mutual friends that still hang with ex. Do I tell them all the dirty details and expose her or fake like I'm on top of the world and it doesn't me any more?