Freddie Mercury was known of his extravagant and promiscuous lifestyle, which included men of all walks of the life. The gay/bi society in the 1970s was known as a fringe lifestyle, promiscuity being the norm and everyone slept with everybody. The HIV Patient Zero - Canadian airplane stewart Gaëtan Dugas - was known of his completely reckless and disregarding lifestyle, and as a flight attendant could infect hundreds of gay men all around the US. That happened in the 1970s.
Freddie loved everything beautiful, be they works of art, women, music, cats - or men. He was extremely sensitive - and it was his undoing. According to Jim Hutton, he first sought diagnosis for HIV in 1986, and was diagnosed with AIDS in 1987. Since HIV can incubate for years before developing the full AIDS - usually it takes 5 to 11 years, Freddie had no natural resistance, and as it was a particularly virulent strain, it is likely he contracted HIV in the early eighties. Some people point it to the period between 26th July and 13th August 1982 during a break in the tour in US.
Freddie had gazillions of one-night stands at that time, and he also organized wild orgies and parties. But after the Live Aid concert at Wembley Stadium 1984, he moved together with Jim Hutton, who was a faithful friend. They stayed together until Freddie passed away 1991. Jim Hutton himself was HIV positive.
Just a couple of guys on their own personal mission, one that has terrible consequences for society. Wow.
“Freddie had gazillions of one-night stands at that time, and he also organized wild orgies and parties“
Gotta say, your definition of “sensitive” differs from mine.