In the 1920s she owned a duplex in Hollywood. She lived in one side and rented the other.
In the late 1920s, Key became romantically involved with silent film star Buster Keaton, who was married. According to the Keaton biography written by Marion Meade, Keaton attempted to call off the relationship but Key flew into a rage and destroyed his MGM dressing room. A friend of Keaton's heard about the tantrum and sent him a telegram saying, "Congratulations. Hear you are off Key."
WAMPAS Baby Star of 1923.