This one is very hard for nice guys to understand.
They have been programmed all of their lives by women who's very nature is to break men. Mother's do it to their husbands, and to their sons.
What a woman really wants is a man that will stand up to her, and then, for that man to be nice. But, her insecure nature is such that she will hen peck, and nag to reduce the man's backbone. Its in all of the movies and sit-coms.
A nice guy has heard these things, that are supposed to be pleasing to a woman, all of his life. And he doesn't know that they kill a woman's desire. He doesn't understand why it doesn't work, he is doing everything he was told.
It's contradictory to what common sense would tell you. Indeed that makes it difficult for nice guys to understand.
I think it is just another example of the struggle of power between the genders. And, i'm sure that most nice guys will learn the hard lesson.
They'll learn if they ever want to get laid! Lol!