Sorry to hear about the weekend. Sounds like your W is pretty damn immature. It's like a teenager choosing not to do the assignment the teacher gives them. And she purposely does it to get her digs in.
I would suggest you not talk to her, but act as happy as a clam around her. That will infuriate her no doubt. But then again, why should she make you feel like crap? See her for the teenager she is.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.