There would definitely be way fewer instances of cheating, if the average couple did not have sex only when the woman feels like it.
When it comes to their love lives, some people do not really have high standards; they merely have low sex drive.
I have learned that the libido, like Elvis and jealousy, never dies. I know copulators of eighty-five. Who said you need an erection, a body or an orgasm for sex?