The mom doesn't become sexy; the woman does. You have to retrieve the woman from the mother. And she may need to separate to do that: a bath, a walk. She must cordon off an erotic space.

Our consumer economy peddles the notions "romantic consumerism" of finding "the one," of being the one. It's the narcissistic enhancement of, "I'm the one you stopped your nomadic life for." It's one thing when you have sex for the first time when you marry, but it's another thing altogether when you stop having sex with others when you marry. So the marital commitment becomes, "I must be really special. With me, you no longer think you can find better next door." Romantic consumerism is thinking you can't find better, younger or newer.

If a woman isn't feeling sexual with herself, she won't respond to advances from any partner, male or female. When this woman goes dancing, she's finding a connection with her own erotic self. It might be about being on a dance floor, feeling free, not having to feel at all responsible for anybody else's well-being. For other people, it might be about going on a hike for four days by herself and reconnecting with nature and strength and endurance and beauty.

We know desire is rooted in absence and yearning. What you don't have is often ten times richer than what you actually experience. An affair is a perfect erotic plot because it fits the erotic equation of psychotherapist Jack Morin: "Attraction plus obstacle equals excitement.".

The secret to desire in a long-term relationship

The mom doesn't become sexy; the woman does. You have to retrieve the woman from the mother. And she may need to separate to do that: a bath, a walk. She must cordon off an erotic space.

For some people, a one-night stand doesn't make any difference in a seven-year love affair. I don't believe the degree of betrayal is always commensurate with the egregiousness of the behavior. They are two separate things.