I’m working on The Ex-Files, my blog novel, for a mid-July release. It has had the same title for years. But in the time when I first began working on the book (pre-death of chicklit), other novels, and a TV show have used this title.

Friends and colleagues are divided in opinion. There’s no “rule” against reusing a title over and over again. This one is perfect for the novel (a young woman gets her dream assignment that will lead to her moving toward her...