Erotic intelligence stretches far beyond a repertoire of sexual techniques. It is an intelligence that celebrates curiosity and play, the power of the imagination, and our infinite fascination with what is hidden and mysterious.

One of the big misconceptions is that affairs or trysts are flings about sex. And sometimes they are, but much more often they are about desire. And that is very different. The desire to feel special, to feel seen, to feel appreciated, to be laughed at or with. The desire to be desired. That does not manifest in a sexual act per se. Affairs make you feel alive. Alchemy means it's not about the actual sex, but the sexuality, the energy, the aura. It's the imagination and anticipation of it as much or instead of the actual experience of it.

In committed sex, in marriage, people don't feel the need to seduce or to build anticipation - - that's an effort they think they no longer need to do now that they have conquered their partner. If they're in the mood, their partner should be too.

Love is at once an affirmation and a transcendence of who we are.

In desire, there must be some small amount of tension. And that tension comes with the unknown, the unpredictable. You can close yourself off at home and say, "Whew, at last I'm in a place where I don't have to worry," or you can keep yourself open to the mystery and elusiveness of your partner.

For most couples who come to me - especially in the aftermath of the revelation of an affair, when they are in a state of crisis and fear the loss of a predictable future - they start to have conversations for the first time about love, sex, monogamy, and marriage. Most couples don't negotiate or don't even converse about any of these things until the crisis of the affair has actually forced them to. Why does it take infidelity to get us talking about the stuff that should be there from the start?

As a teenager growing up in Europe, I embraced the romantic ideal. For me, I had to give up the ideal that one person would be there for everything. Once you give up that ideal, then you begin to accept the person that you are with - the person who won't be able to give you everything and who won't be able to know exactly what you want and feel without you even needing to say it.