I think maybe she's always envisioned herself as his "the one who got away" and enjoyed that bump to her self-esteem
Interesting tidbit: I met DF 6 years ago through a mutual friend. We dated a little, but I lived in a mountainous state and was a college student and he was well established in his home state. Soon after we started a long distance fling, I was accepted to transfer from state school to prestigious private university, so we stopped dating
. A few years later I met another mutual friend in Albuquerque to be extras in a Simon Pegg film. Through talking to her I reinitiated contact with DF, and through conversation that summer he told me that I was "the one that got away." Fortunately for us both, we started up again as I was entering my last year of university time and had quite a few frequent flier miles accumulated.
OP, I am wondering how BW was asked to be BW
Sometime after DF and I started talking marriage, we were out with our large group for St Patricks Day. I corralled my three best girlfriends and one guy friend whom I felt I could trust with anything and who had been supportive and supported and who helped me be my best and asked if they would consider standing up with me should the need arise. Three said yes without hesitation, BW said that I may have to fight DF for her. I thought nothing of it at the time, as our group tends toward odd humor most of the time, and acquiesced when DF agreed that he wanted BW and his 2 brothers.
Since our big Halloween event is in 2 weekends and the wedding isn't until May, I've decided to let things hang where they are for now, let the big ball of stress pass and then see where BWs mouth takes her. If it relents, then I know it was stress related. If not, then DF and I have some rearranging to do. BTW, DF agrees that it's odd that BW is operating with 10+ year old information and over inflating their past ties.