Hang tight GW... stay consistent. let OM give her pressure and ultimatums... It's not that easy to to walk away from a H who is willing to work for M, can be FUN (I know this is hard... ) and rip apart your kid's home.
Especially when she starts to see the REALITY versus FANTASY. The fantasy feeds on the thrill of the I possibility of it all, the anticipation. If she has any sense she ' ll realize that there will still be dirty laundry, grocery shopping, budgeting, and the extra burden of juggling kids with the Ex. Not such an appealing fantasy anymore, eh?
You can only control YOU... Determine you are going to be FINE no matter what! Be cordial, but don't get dragged into her drama...
