EJ, you need to stop using the word "ME" and "MINE" when talking wtih your wife. It just encourages selfishness I find.

If you say "These are the boundaries identified by professional family therapists and they applied to our WHOLE FAMILY" she can't twist that.

If you say "these are my boundaries" she can just say "wel they aren't mine" or some such.

Just tell her "These boundaries are for the whole family and I intend to honour them as I am holding you to do that as well.. I am NOT asking you to do anything I am not prepared to do."

I find when they see and hear that you are meeting them 50-50 they don't have much ground to argue.

Ignroe her getting defensive.. just say it and walk away. You don't need her to reply.

She's in withdrawal anyways... SHe's going to be bitchy