I was flipping channels on the TV andsaw a snippet of Dr. Phil. Featured a H who was inches away from having an affair and becoming a WAH. His comment about coming home from work struck me: "Every day wasn't bad, it was just the SAME day"
Never underestimate the need of the WAS for CHANGE in their life. Even if your married life before the bomb was pretty good (mine was) - the SAMENESS may have gotten to them. I guess this is why GAL, acting mysterious, buying new V.S. undies - all this change tends to work when DBing.
