I am rooting for you!!! I am retired military and think strategically so it can come off as black and white. You are on ground zero as they say....have all the knowledge as far as her personality. There has to be some chinks in the OW's armor that can be exploited. Some way to make your wife or the OW realise this is just not worth the headache. That is what I would keep pinging on!! Good Luck.