Well, I know B's wife had a hand in persuading my W to leave me. I've heard direct quotes of some of the things she's said about me (first-hand accounts).
She got pretty screwed in this deal, too - but she had turned a blind eye to the issues right in front of her (the EA between B and my W) and instead chose to make me a villian because she couldn't see what I and many others could.
In the interest of trying to be the best person I can, I'm going to have a brief talk with her, either via e-mail or a face-to-face thing to let her know how I feel and why it seems like I haven't been too pleased with her.