I completely get your frustration ... we all get there. You have 2 options with it ... actually you have one, the other is beneath you. Use this to propel yourself to the next level, use is as I did to detach more. Your W is in LaLa land and doing her own thing obviously .... that email she sent with the line about wanting to be clear 'its not a happy family' ... well no Chit, no truth dart required there. Like you .. I would have been pissed and did the 'thanks but no thanks' on the pizza and gone about the Bday party that she honestly appears to have little interest for. HER CHOICE ... detach and distance yourself .. she continues to hurt you as you allow .... I read some time ago that when a human suffers, they must get to a point where they actually Change to not suffer any longer ... use this lesson to do that Dif.