Something I didn't know in my teens and twenties, but have observed over the years about women. Women tend to differ more among themselves in terms of sexual interests and intensity than men. And women with very high sex drives sometimes feel like there's something wrong with them, especially when they hear messages that they "aren't like men".
So I would say you can easily have bigger differences between women than the difference between the average man and the average woman. So, for a particular man to say to a particular woman that she doesn't understand how men feel sexually, well, not necessarily. And it's often the case that one woman doesn't know how another feels sexually either, though they might seem to agree in conversation that men are often jerks, etc.
