I am right there with you. Maybe the best she can do right now is not be out. Also, notice that she has not left. I appreciate this is a hard position as I have occuppied it for a couple of months. Of course, some here have been in limbo much longer. The best advise I can give you is to keep up the good GAL work. My feeling is those are positive changes that you get to keep no matter what the outcome. This is understandably cold comfort right now, but in the long run, no matter what the outcome, the changes you are making will serve you well.
I find it is hard to be alone doing the evening routine with the kids alone. In my sitch, my W works a few night each week. This is probobly stuff that you and your wife did together, so her absense during this time is probobly most palpable. It has been for me. First, cherish the time with the kids. Second, start a project after they go to bed to occupy your mind.