Answer
Loos was married three times. Her first marriage was to Arthur Hornblow Jr., a theater producer, in 1913. They divorced in 1921. Her second marriage was to John Emerson, a screenwriter, in 1922. They divorced in 1931. Her third and final marriage was to George S. Kaufman, a playwright, in 1931. They remained married until Kaufman's death in 1961.