The vast majority of women today are more focused on their exterior than their interior in terms of provoking attraction in a man. While beauty is important, there's millions of beautiful girls who can't keep a man's attention beyond beauty because their souls are thoroughly masculinized.
They're too sexually forward without being emotionally balanced and graceful, and they are too emotionally clingy (which is also masculine because it derives from seeking power and control over a man) without being cautiously reserved and vulnerable.
And as a result, they don't know how to love a man and they don't know how to receive love from a man. Men want love. But they will only truly desire love and accept love from a woman who is equally capable of giving and receiving love in return in a mature fashion.