Kikifree - it is called projection! Your h is being mean to you, and he knows it. He is complex and he knows it.
He is so selfish and immature right now that he drags your 7 year old daughter into it. And like Jeanette, I would love to know what your h answered about OW. But you cannot ask, that would be unfair to your daughter. It really sucks having to be the adult all the time!
The comment about divorce to your daughter was so inappropriate that it is hard to believe he made it, except that these crezy people have lost all sense and decency!