Tell her she's in the illuminati.

"Your ears are triangular. Did you know that triangles are generally associated with the illuminati?"
"Yes, shut up, that joke is practically ancient."
"You know what else is ancient? The pyramids. You know what shape the pyramids are? Triangle shape."
"I need to teach my clan how to speak properly."
"Logically cats can't speak. Cat has three letters--"
"Wait a minute that's a huge leap, how the Dark Forest did--"
"OMSC BLUESTAR'S IN THE ILLUMINATI EVERYBODY ITS REAL SHE'S CONTROLLING US."
"I hate you all."