Document as much as possible of your time in the States. When you go out, hang on to receipts. That way, if she continues to lie and say you did such and such, you have a doc which says you were somewhere else.
I'm sure seeing her helped you detach from her. Tired and used isn't attractive.
Stay in touch here. Coach and Greek
Me45 H46 T25 M22 S21 & 19 D13 Separated and filed 8/08 Moved home 11/08