Monday and the work week will be trickier. I reall don't want her around but doubt she will leave. That brings up the whole master bedroom issue. Not an argument I want to have because seems unproductive and a dead end.
If she refuses to leave, are you saying you'd stay there in the house with her? I know you haven't had time to think about it, but I hope you won't agree to in-house separation. They aren't successful. You really would go through hell, if you had to stay there separated. If I remember right, wasn't that the direction you were headed last time?
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!