I dont see anything wrong with it really, except that it continues to hurt you. He didnt HAVE to tell his kids all about his trip.. they are his kids and maybe he wanted to tell them about it. Maybe he was excited. Maybe it was fun. Maybe there were things that happened that he thought would amuse them. Maybe, yes, he is trying to shove OW down their throats because he wants to be with her and he wants his kids to accept her. It seems that you and the kids dont (and thats not surprising) and so its this constant 'battle'.
