The Real Reason Why Spencer Tracy Never Divorced His Wife for Katharine Hepburn

Spencer was married and had two children.

Spencer married Louise, an actor he met when they were performing in a theater company together, in 1923. They welcomed two children: a son, John Tracy, and a daughter, Susie Tracy. In the early 1930s, Spencer and Louise separated. Then, they reconciled and separated again. Eventually, they lived in separate homes while remaining legally married. During this time, Spencer reportedly had affairs with other women before getting together with Hepburn.

Spencer refused to divorce his wife.

Hepburn and Spencer met when they starred opposite one another in the 1942 movie Woman of the Year, and their relationship took off from there. But, they kept it a secret from the public. According to Biography, they did so for a few interconnected reasons.

Spencer was Catholic and did not consider divorcing Louise an option because of his religion. According to People, he would only have divorced if Louise, who was Episcopalian, requested it, which she never did. Also tied to his faith was the idea that he thought he was being punished for his sins when he found out his son was deaf. Director Joe Mankiewiczonce said, according to the Daily Mail, "He didn’t leave Louise. He left the scene of his guilt."

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Hepburn didn't mind the arrangement.

Though people around them and those they worked with knew that the two were together, there was concern within the Hollywood studio system at the time about how negative gossip could impact their movies. Plus, Spencer, Tracy, and Louise all seemed to accept the situation, and Hepburn was not concerned with remarrying. (She married Ludlow Ogden Smith in 1928 when she was 21. They divorced in 1934.)

They stayed together until Spencer's death.

Spencer and Hepburn's relationship continued until Spencer's death in 1967. They co-starred in nine movies, including Adam's Rib, Pat and Mike, and their final film together, Guess Who's Coming to Dinner.

Their relationship was considered an open secret in Hollywood. Gene Kelly once said (via People), "At lunchtime they’d just meet and sit on a bench on the lot. They’d hold hands and talk—and everybody left them alone in their little private world.”

Hepburn didn't confirm the relationship until years later.

Hepburn, who passed in 2003, didn't speak publicly about her relationship with Spencer until after Louise's death in 1983. The Oscar-winner wrote about him in her 1991 book, Me: Stories of My Life. "I loved Spencer Tracy," she wrote. "He and his interests and his demands came first. He didn’t like this or that, I changed this and that. They might be qualities which I personally valued, it did not matter. I changed them."

Hepburn was asked about this passage in an interview with Katie Couric, who said that it was surprising coming from someone known to be as independent as Hepburn.

"It was my pleasure," Hepburn responded. "He was a witty, amusing, entertaining man with a rather difficult nature. It was easy for me to please Spencer, because I loved him." She explained that she was attracted to "his sense of humor. He had a wonderful sense of humor, and a remarkable memory. And I mean, what attracted me to Spencer Tracy is... magic."