And has the current strategy resulted in positives? Is she moving closer? When is it that she starts chasing a bit? Seems to me it's after you actually start moving away from her. How about for a week or two trying a different tunnel...one in which you accept you will be divorced and you want to act like a divorced couple. I think that doesn't involve her sleeping over.
You cannot be lonely if you like the person you're alone with. Dr. Wayne Dyer