Every relationship needs parameters, and I'd say requiring a partner to have a healthy appreciation of Queen's rock/glam/metal/operatic accomplishments is as good a measuring stick of compatibility as any. If we can't blast "Don't Stop Me Now" in the car and scream along together, do we really understand anything about each other at all? Doubtful.
"Killer Queen" is from the band's 1974 album Sheer Heart Attack, and is about a femme fatale-like call girl. She's dynamite with a laser beam and guaranteed to blow your mind. But if you thought Freddy said she was dining at night with a lesser being, let's just agree to be friends. Lying ain't trying, pal.