She-Devil 1989

Ruth is a wife and mother who tries to please her husband, even though she is fat. But when her husband falls into an affair with a certain romance novelist, Ruth goes bezerk and demands revenge. First she embarresses her husband when his parents come over to dinner. Then when he leaves her for good, Ruth comes up with a list of everything that belongs to her husband then the revenge is to destroy all of it. Because, she's a She Devil!