Thanks for the reality check. You all sound like you're right on the money. My own experience doesn't give me much of a perspective. I've never experienced a woman faking an orgasm, let alone actually having a real one.
But I was at least aware that women gain sexual maturity with age, and so I was hoping that was going to happen in my marriage. In fact, several books seemed to virtually assure me it was going to happen. Never happened. I should never have read those books.