She is trying to stay on your good side. She does not want you to get nasty in court, so she is trying to be nice.
A couple months ago, you were being overly generous when talking about the settlement, trying to appease her. She wants you back in that generous frame of mind, so she is trying to remind you of what a wonderful person she is, doing things for you and reminding you of the good times. Asking you for a back rub was part of that.
And, she is constantly trying to gauge your mood and intentions about the divorce, to see if her actions or attitude are having any effect.
I suggest that you enjoy the home-cooked meals and clean laundry while you can. And be every bit as nice and accomodating to her as she is to you. Obviously, don't let it affect your legal decisions. Let your lawyer handle all of that.
