I wasnt siding with the ex wife, but just trying to say that, yes I can imagine he is feeling like he has been betrayed in some way and I would feel bitter about it too....but things have happened to me in my life and I just look at it as a lesson learnt, even if it is a hard one, and you feel you have wasted years of your life on someone who clearly wasnt worth the effort, but your man should concentrate on what he has with you and build on that, instead of dwelling on the "betrayal" that he must be feeling from her....its his call, but does he really want to uproot the kiddies, no doubt the mother will blame him for it all, and he will end up the bad one, another thought on the matter, if she stays with this new fella, couldnt they buy your man out???.....whatever he decides to do I wish you both luck