Some people find it easy to commit adultery.
Their attitude and circumstances mean that, when an offer comes along, they are ready to accept. If you're single, however, committing adultery is a problem. I like to delude myself that I have a girl friend. I pretend I am in a long-term relationship with the girl at the pub who sells me beer and hamburgers each Friday. When I talk to other women, I get the delicious thrill of the affair, without the attendant complication of guilt.