American former novelist, turned cab driver, falls in love with married blond French model, has a torrid affair with her, but she leaves him to return to her rich playboy husband. He reports on his love affair to a single women and her mother, and another woman. He sends his book to the model towards the end of the picture. Movie recently on, I believe, Flix.

Sounds like Fall (1997) (http://www.imdb.com/title/tt0119098/)