The Wife Between Us by Greer Hendricks and Sarah Pekkanen

Vanessa can't leave her past behind. Her ex-husband, Richard, has moved on and is engaged to preschool teacher, Nellie, but, Vanessa cannot let Nellie make the same mistake she made by marrying Richard. Richard was controlling and things went on between them that she cannot confess to anyone, even her Aunt Charlotte, with whom she now lives. However, Vanessa appears unstable--drinking too much and hardly able to keep her job. Will Vanessa be able to warn Nellie before her own self-destructive behavior overwhelms her? The Wife Between Us is a portrait of marriage similar to The Girl on the Train, The Last Mrs, Parrish, and the novels of B.A. Paris, although I felt overall it was more simplistic in characterization and execution than those books. It will be published next month.