Passage: The most significant relationship of Hepburn's life was with Spencer Tracy, her co-star in nine films. In her autobiography, she wrote, "It was a unique feeling that I had for [Tracy]. I would have done anything for him." Lauren Bacall, a close friend, later wrote of how "blindingly" in love Hepburn was with the actor. The relationship has subsequently been publicized as one of Hollywood's legendary love affairs. Meeting when she was 34 and he was 41, Tracy was initially wary of Hepburn, unimpressed by her dirty fingernails and suspecting that she was a lesbian, but Hepburn said she "knew right away that [she] found him irresistible". Tracy remained married throughout their relationship. Although he and his wife Louise had been living separate lives since the 1930s, there was never an official split and neither party pursued a divorce. Hepburn did not interfere, and never fought for marriage.With Tracy determined to conceal the relationship with Hepburn from his wife, it had to remain private. They were careful not to be seen in public together, and maintained separate residences. Tracy was an alcoholic and was frequently depressed; Hepburn described him as "tortured", and she devoted herself to making his life easier. Reports from people who saw them together describe how Hepburn's entire demeanor changed when around Tracy. She mothered and obeyed him, and Tracy became heavily dependent on her. They often spent stretches of time apart due to their work, particularly in the 1950s when Hepburn was frequently abroad for career commitments.Tracy's health declined significantly in the 1960s, and Hepburn took a five-year break in her career to care for him. She moved into Tracy's house for this period, and was with him when he died on June 10, 1967. Out of consideration for Tracy's family, she did not attend his funeral. It was only after Louise Tracy's death, in 1983, that Hepburn began to speak publicly about her feelings for her frequent co-star. In response to the question of why she stayed with Tracy for so...

Question: What made Hepburn not attend Tracy's funeral?
consideration for Tracy's family