So out of curiosity I went through our state's self filing paperwork out of curiosity for no fault divorce completed the docs and printed them, it didn't take too long but I didn't complete a schedule of personal property. Would it be a hell of an alpha move to present them to her? Give her the reality that she desires to her? Though we agreed to do it together?
I'm concerned you would be doing it to seek a reaction from her. I say hold off on that idea at the moment. If she agreed, and then you regretted giving it to her.......that would put you in a bad place.
Give her a few more days and see if her behavior changes any.
If it gets far enough to discuss her staying in the M (not just the house), I think you will have to approach the problem of her working in the same office with OM. She will not be able to withdraw emotionally while working with him. Every time she sees or hears from him, it will trigger her feelings. So it's a big problem.
But, first things first. She hasn't even agreed to end the A, yet.
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!