It is imperative no one be Richard (dick). Be pleasant but only to a level of meeting a neighbor.
As far as detaching goes WE ALL should detach. Guys, I' am afraid you have a wrong idea about detachment. It is not hating the W and being a total dick about it, it is detaching from the outcome, letting go so to say. You can still love your W, but detaching means that you recognize W's right to lead her life, do her thing, but you shelve those feelings and take care of yourself... And you stop worrying about the outcome and about your wife. You can't control your wife, you never could, the only person we can control is ourselves...