The boy just grew a pair. I started looking at Choc's old threads and advice Hairdog gave and finally realized, fighting for a M means FIGHTING. It isn't hanging back and accepting.
So, sent an email to WAW. Told her the situation was unacceptable. Told her she was disrespectful of me, our M, her family/friends, and herself by having A. Told her the OM was a slimeball who tries to seduce married women.
Went on to tell her that I offered her support but needed her to communicate. If she couldn't expend that little amount of energy, it was her choice, but was divorce equivalent to asking for some space and additional support?
Concluded by repeating an old love letter she wrote, then saying that I will be there for her, but not in this situation, and that I needed to protect myself from the train wreck that her life was becoming. It didn't have to be this way, but the choice was hers.