This made me think about a previous comment she had made relating to her friend, and the fact that her friend was, at one time, in a relationship with a married man, and she knew it. In the book, Lauren Winner, the author, looks at this from her friends point of view. However, I am thinking about it from the perspective of the man committing adultery, and how disconnected he would have to force himself to be to have sex with someone aside from his wife.
Sex brings a connection between two people that they may not realize at the time. How a man could have sex with two women, and, being married to one, feel no shame. He must disconnect himself to a point where he is either nearly convinced that he is not married, or that he is not having sex with this other person. And if not one of these, I don't understand how he could live with that guilt on his heart.
I really don't understand how people can do this, and I pray that I never have to fall victim to cheating. I think marriage is something deep and that interrupting that with an affair has got to be painful on the wrongdoer.