I Had S*x With My Boss In The Office,

I’m a secretary and made an irrational decision nine months ago to sleep with my boss. He was years older but extremely sophisticated and s*x with him was good. So was s*x with my husband. My lover is happily married, so what we had was a fling.

But why was I attracted to another man when I love my husband? My boss had since been promoted and he now heads a branch office. The affair is more or less dead. But why did I have it? Does it mean my marriage is doomed?