Get legal advice ASAP... you should have done this a long time ago. Find out about how her abandonment of the marital home would affect you. If you can change the locks... etc. Find out what you need to do to PROTECT YOURSELF in the event of D. You are not a spring chicken anymore and can't really afford to start over from zero.
1) Where is the cash she is spending for all this coming from?
Cancel or report the cards as stolen ASAP. If her funding runs dry then she will use the cards. WAW's have a sense of entitlement... and are not in their right mind. They will blow through cash like never before.... spending money on plastic surgery, new wardrobe etc.
By something to consider... after you have cut off her finances... at the last minute accept her offer to join her "on vacation" if she persists with the plan. Do it to see her reaction... if it is positive... then you know she is sincere. If she throws a hissy fit then you know that she never meant you to go. Repeat: YOU DO THIS ONE OR TWO DAYS BEFORE SHE LEAVES.
Most of these things can be done tomorrow... for today... go out and enjoy the football with good friends. Ignore her. She is not your focus. Today I wrote a note to a friend about detachment. I posted a copy of it in my sitch. Go read it because you are still NOT detached enough.
