Peridot actually looks kind of offended by that question.

"Ew no! Althooooough..."

She trails off, and squints harder. Then she starts to pace a bit, rubbing her chin as she goes.

When it clicks, she whirls on Entrapta and points at her dramatically. "I remember now! You were in one of my dreams!" and there's only one Person she knows who is capable of that. "Who are you!? Are you yet another secret Pink Diamond in disguise?!"