Let it. Let her fund her own PA or OM to do it. Good for you.
Send a grocery basket for the kids or the card to buy food. If she can afford to go out then she can afford food. Her choice.
And no you are not a jerk, far from it. You are getting on with your life. I think WW will be in for surprises when she does plead her case, especially if you get majority custody.
V
Freedom is just another word for nothing left to loose. V 64, WAW