There would definitely be way fewer instances of cheating, if the average couple did not have sex only when the woman feels like it.
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?
When it comes to their love lives, some people do not really have high standards; they merely have low sex drive.