Feeling angry signals a problem, venting anger does not solve it. Venting anger may serve to maintain, and even rigidify, the old rules and patterns in a relationship, thus ensuring that change does not occur.
Harriet Lerner is an American psychologist and preeminent voice on the psychology of women, family, and relationships. She is the author of several books on these subjects, including the New York Times bestseller The Dance of Anger.