First things first... you need to protect yourself and your finances, legally seperate as for every dollr she spends on her new life doing whatever it is she is doing you are paying half ... in a sense you are actually financing her new lifestyle as you sit on your couch.
My W and I agreed on a separation date during Mediation .. this could have potentially saved my A$$ as unfortunately for her she cleaned out our accounts before this agreed upon date, (Legally would have had to pay back that portion) and then she racked up about 35k in debt (Again ... debt I was not obligated to pay)
This did play a small factor in the turnaround for my sitch .... moving forward as far as I am concerned our finances will continue to be separated OR I will be the one controlling them (180 for me here) regardless.... I will have a much better handle on where we are and where we are headed. Lesson learned the hard way.