How do I handle things if STBX comes back and wants to work on the M again?
Bottom line, this ^^^^^^^^ is what you want to know, right?
I don't know that I can give an unbiased answer. If she was humble about it and take responsibility what she has done to you and the kids........and was serious about family therapy, IDK, I'd still have doubts. B/c I don't think she would be returning to you and the MR. The only reason she would return is so that she won't have to work and can stay with the boys........until the youngest gets older.
Outside of a miracle changing her heart, I would be leery that she would make your life hell (hotter than ever) once she moved back. She doesn't like losing. Her feelings for you have not changed, and she is still a wayward woman.
If the two of you, and then with the kids, received intense family therapy.............before moving in together...........and you have a chance to see if your W is even trying to change.........then maybe you would be in a better place to decide.
IMHO, you should not allow her to move back into your house if you are divorce. She can find a place to live there, and get a job to support herself. I mean, she might try to be nice for a few days, but I think she would be horrible to you. However, this is your life and your decision.
BTW, I hope she's been told she could not remain a SAHM and you support her?
Jim, what do you really want? Never mind, I know the answer. Let me ask which option do you want, if you knew WW's attitude would not change? Do you want to stay under the same roof with her?
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!