If she's trying to "draw you out," to do some thing crazy, then it's time to be the most sensible, responsible guy in the room. Volunteer at a homeless shelter. Coach some underpriveliged kids. And DON'T take her bait.
Why exactly do you want this woman back? Do you think she is truly a woman of character, that you want raising your daughter and teaching her morals and values, and she's just temporarily gone astray? Or is this who she is -- a serial adulteress?
