Very long story, which I won't go into (and don't want published in DM)
OW doesn't know stbxh is married/was married when they got together (I think 1 year before we separated). Aside from the fresh set of lies this has dug up for me I feel terrible that she doesn't know. He is manipulative and controlling and has repeatedly lied and cheated. I had previously assumed that she was equally unpleasant, but it seems she's an innocent party.
WWYD?