Warhol was homosexual. In 1980, he told an interviewer that he was still a virgin. Biographer Bob Colacello, who was present at the interview, felt it was probably true and that what little sex he had was probably "a mixture of voyeurism and masturbation—to use [Andy's] word "abstract"". Warhol's assertion of virginity would seem to be contradicted by his hospital treatment in 1960 for condylomata, a sexually transmitted disease. It has also been contradicted by his lovers, including Warhol muse BillyBoy, who has said they had sex to orgasm: "When he wasn't being Andy Warhol and when you were just alone with him he was an incredibly generous and very kind person. What seduced me was the Andy Warhol who I saw alone. In fact when I was with him in public he kind of got on my nerves...I'd say: 'You're just obnoxious, I can't bear you." Billy Name also denied that Warhol was only a voyeur, saying: "He was the essence of sexuality. It permeated everything. Andy exuded it, along with his great artistic creativity...It brought a joy to the whole art world in New York." "But his personality was so vulnerable that it became a defense to put up the blank front." Warhol's lovers included John Giorno, Billy Name, Charles Lisanby, and Jon Gould. His boyfriend of 12 years was Jed Johnson, whom he met in 1968, and who later achieved fame as an interior designer.