During part one of the reality television series reunion show Monday, Gunvalson said she was surprised to learn a fellow partygoer was gay.
"He didn't have gaydar," she explained, seemingly not understanding that she, in fact, was the one who didn't have gaydar in this situation.
"Usually, they're very, very, very fit. They're usually very GQ looking," she said. "They're very poised. Not to generalize, but that was my viewpoint."
Gunvalson then went on to tell openly gay host Andy Cohan he also didn't have gaydar.
"I don't think you do. You're all boy to me," she told him.
Notable deaths of 2014 [PHOTOS]
Polly Bergen, Emmy Award-winning actress, dies