It sounds to me like you are doing the right things. Talking when he ask, and not showing emotion is usually a good thing. And especially if he is not bringing up D, than maybe you are moving on the right path, my W and I can't usually have any R talk without her throwing in an immediate D.
Chances are he said yes to reading the book, but will not bother, and I would not even mention it again. He will most likely lie, or you will have your feelings hurt by the answer you get. JMO.
Just do your best to keep up a PMA, and GAL. Shock
