When Freddie Mercury sang 'Bohemian Rhapsody'...?

What did people think when he sang the lyrics - "Too late, my time has come, Sends shivers down my spine, body's aching all the time, Goodbye, ev'rybody, I've got to go, Gotta leave you all behind and face the truth" - I've always thought it seemed terribly sad given his AIDS. Was it a reference to that? Did people watching him live ever cry at those moments?