It is great that you are willing to do all that sexual experimentation. But given W was stuck in a wife/mother sexual persona, she probably didn't really feel free to enjoy it, or at least free to initiate it or acknowledge her enjoyment later.
Which is why she needs individual counseling. She has hang-ups. They are HER hang-ups, and not mine. I have different ones, but these ones are hers. Until she addresses them, there's not much I can do.