Clean Break, Move On. She left the R. You leave the M. That's what I did. Then you say, "STBX, you don't decide for me and I'm not moving." Man up. Protect yourself/children. Read other posts for those in similar circumstances. GAL (said in the nicest way possible) and get your self respect back.
What Chuck said. ^ Your wife is dreaming. If this is what she wants, time for her to put on the Big-Girl Panties. This isn't some cheesey Lifetime movie!!!
Yes, by all means, get some DB coaching or some good ICing. Learn to set boundaries, and to enforce them. Your kids need a hero right now, Gef, and unfortunately, that's not your wife. That means it's time for YOU to step up . . . and shine.