I feel like I've been kicked in my stomach every time I hear mention of my XBF with another girl. If he were with a friend of mine, I think I'd move out of state and never speak to her again. It'd be too much to take.
Or, as the
Southern Belle Primer says, "Never date your sister's ex-husband until 3 years after the divorce. You may need her to write your daughter a Kappa Kappa Gamma rec someday."