Lianna

Lianna is a 1983 drama film written and directed by John Sayles. It features Linda Griffiths, Jane Hallaren, Jon DeVries, among others.

Becoming more involved in the class and interacting with the female professor, she realizes she has a crush on the instructor, Ruth. Ruth invites Lianna over to her home for dinner and they talk into the night, Lianna explaining that she was a graduate student at one time who married the professor. They eventually sleep together and begin an affair, complicated by Liannas husbands affair with one of his students. Lianna expresses interest in leaving her husband for Ruth, but Ruth backs away, warning Lianna that living with another woman would jeopardize her career as a child psychologistand, to complicate matters, she has a partner in another city.Lianna leaves her husband after a particularly ugly fight to live alone for the first time in years. Lianna visits a lesbian bar and attempts to connect with other lesbians through a string of affairs to explore her new identity. The film explores her loneliness, her changing relationships with her children, and her new relationship with Sandy, who is shocked at Liannas revelations at first, but slowly begins to accept it and support Lianna. ........

Source: Wikipedia