She nods, sagely. She knows she's doing him a big favour, after all. He should definitely appreciate it.

"I'm staying with Buttercup, at her 'secret base'." Her tone makes it clear that this is an incredibly childish thing to call it. Which she is, of course, far too mature to appreciate, and is humouring the younger girl.

She's a good liar, okay. Too bad Wei Wuxian knows that.