Dear Reader: The Associated Press Stylebook, aka the Bible of journalism, has decreed that the word “mistress” shall no longer be used by journalists because “it implies the woman is solely responsible for the affair.” Instead — and much to the relief of unfaithful men everywhere — we are to use “friend,” “companion,” or — if we dare — “lover.” How many divorce actions, filed for the cause of adultery, will use those terms? “Mrs. Jones found out Mr. Jones was keeping Stankyho, a long-term friend, in a New York apartment for 10 years.” Nope, the legalese will say “long-term...