Amy...sorry to hear about your latest interaction. But I feel ya!!
I've been wondering myself about how I would react if my W brings OM around the kids again. What would I want to do to "punish" her? I've been thinking that there isn't anything I can do to stop it really; all I can do is get angry about it. It's like the last fatal attempt at saving these things; keep the kids away from OP. I almost feel like it's an attempt in vain. If the M is headed for D and we know that there are OP; we also know that the kids will be exposed. But for some reason, I feel like I equate keeping the exposure from happening is the last thing I can "control" to keep what little semblance of family I have left. Maybe it's the knowledge that the "exposure" to the OP is really the final chapter in the M or the beginning of the dissolution of it. From which there may be no return.