I guess I'm having trouble buying it. I don't think she's deliberately lying, but a little over a week ago she was still struggling with her feelings for OM. Three years of festering disconnect, 6 months of hell, and overnight it changes? Suddenly our issues that a couple of weeks ago were insurmountable aren't that big a deal? I guess I'm having trouble wondering that if it can shift one way that quickly, that it can shift back just as quickly.
I experienced something similar in my sitch. In my case, it was my finally agreeing that we would date others, and then I went on one very casual date. ONE. OMG, you'd think a switch went off. It was the day that our entire sitch turned around.
It kinda depresses me to be honest, to think we humans are such simple creatures, but it's just basic "push/pull" or "chase/capture" male-female dynamics. Think "dogs peeing on fire hydrants," only with a vocabulary, and clothes and stuff.