"Once a month," she promises, crossing her heart. "I swear."

She doesn't know whether a surprise means he hasn't worked something out or if it's an actual surprise, but she's happy either way. Isabelle likes surprises well enough and she likes Billy. She trusts that he knows what she might like, and that he won't drag her around to the library or something. She can only hope he hasn't gotten dating advice from Alec beforehand, otherwise she's doomed.

"That sounds fun," she says honestly. "Can you cook?" Isabelle definitely can't, but she's always willing to try.