I watch pornography too often and I fantasise too much

Q. I can’t stop thinking about sex.

I’m single, in my 30s, and spend a much of my free time watching porn online. At work, I constantly fantasise about the young women in the office. I know this is not right, but I can’t stop myself.

A. Your principal sexual relationship is with pornography and fantasy — not with a person. Yet, at the heart of all deeply satisfying sexual encounters is a loving relationship.