What comes first. The chicken or the egg. I keep wondering, "Why does he need to push it into everyone's faces?" There is a huge amount of insecurity here on both his and OW's part. My XH has thankfully pulled away from pushing it into the D's faces, but at the same time, they have lost their Dad. No win situation.

I think you are very lucky to have such warm and loving children, Irish. Perhaps they should just tell Dad to 'get a room'.