Philips married Humphrey Bogart on April 3, 1928, at her mother's apartment at 24 Hopkins Street in Hartford, Connecticut, by a Justice of the Peace. This was Philips's first marriage and Bogart's second. He was then a little-known stage actor, and she was an established actress in the New York theatre. When Bogart began to gain film roles in Hollywood, Philips declined to move with him to California, as her stage career was firmly established in New York. Philips and Bogart divorced in 1938 after ten years. The couple had no children, but remained on good terms. Philips and her second husband attended Bogart's memorial in California following his death in 1957.
Continuing with her stage career in New York, Philips then went on to marry her longtime friend, actor and director Kenneth MacKenna (August 19, 1899 – January 15, 1962), an American actor and film director, born Leo Mielziner, Jr. in Canterbury, New Hampshire, brother of five-time Tony winner, Jo Mielziner. The couple were married in August 1938; it was the second and final marriage for both. They later made their home in California, where Kenneth worked for MGM. They remained married until MacKenna's death in 1962.
During the later days of MacKenna's life, both Philips's mother and Kenneth's mother lived with them in their home in Brentwood. Following the deaths of her husband and her mother, Philips moved to an apartment in Santa Monica. She was generous to her extended family, and both she and Kenneth made major contributions to charitable organizations, colleges and to the arts.