COLUMBIA, S.C. (AP) -- For nine years, Michael Boyle lived a double life. A trusted aide to Sen. Strom Thurmond, the 30-year-old Boyle shared the South Carolina Republican's conservative ideology and rural upbringing. But what he didn't share with Thurmond for years was the knowledge that he was gay and infected with the AIDS virus. Finally, in 1991, he told Thurmond. From then until his death on April 22, he worked to teach people about the disease that took his life. "When he told me he had AIDS, I was just surprised and felt sorry for him," Thurmond said in an interview published in The (Columbia) State newspaper Sunday. "And I just hate to see a man of the qualities he had -- he had ability, he was very courteous and capable -- I just hate to see someone like that have AIDS and die from it." Boyle lived with the Thurmond family for a time, caring for the senator's children. At his funeral in Aiken, Thurmond sat in the second row, although the senator had buried his 22-year-old daughter, Nancy Moore, just the week before. Boyle knew he was gay early on, but he said he also knew that in his hometown of Aiken he had to remain in the closet if he wanted to fulfill his dream of a political career. So the scholar and community activist led a double life, dating pretty girls while a student at the University of South Carolina, but always getting them home by 11 p.m. so he could go meet gay partners later in the evening. Boyle was working for Thurmond in 1986 when he learned he had the AIDS virus. "I was infected with HIV early in the epidemic not because I am a gay man, but because I engaged in high-risk behavior," he once said. "I did not know that this activity would put me at risk for anything, much less cut short my life. I was 23 years old. I was going to live forever and make a great success of my life." It was two years before he told his lover and four years before he told Thurmond. After he went public he plunged into volunteer work for different AIDS organizations and at a health center at Virginia's George Mason University. "He truly had a mission. If his truth was going to help someone else, they should know it -- so that none of the children would have to sit in the chair where he was 10 years from now," said Penny Lane, director of the Northern Virginia AIDS Ministry. Boyle's politics also changed. The lifelong Republican began to speak out against funding cuts for AIDS education, and last year he voted for Bill Clinton for president.