Un amour de femme, from the series Combats de femme, is a 2001 French film directed by Sylvie Verheyde about Jeanne, a married woman who has an affair with a female dance instructor named Marie.
Back home, David asks Jeanne why she has been so distant recently. Unable to continue lying to him, she writes Im in love with Marie on a piece of paper and hands it to him. David becomes angry and, after a heated argument, he leaves to stay with Franck for a while. The next morning, Franck meets with Marie and tells her to stay away from Jeanne and David. David then goes to meet Jeanne and tells her to stop seeing Marie or he wont let he see her son Louis. Afraid of losing her son, Jeanne cuts contact with Marie and returns to David.With Marie no longer around, Jeanne and Davids relationship becomes worse as they constantly fight. Jeanne is heartbroken and becomes depressed to the point where her son Louis says she is no longer fun to be around. At night David gets dressed up in lingerie as an insult to Jeanne, telling her it is what she wants and they begin fighting once more. Jeanne decides she has had enough and in the morning she takes Louis to stay at her mothers Roselyne Delpuech. After contacting her lawyer, Jeanne goes to see Marie. The film ends with Jeanne and Marie walking along the beach together. ........
Source: Wikipedia