RORY: I don’t think Luke knew anything about the food last night … Which means you lied about why you came over.
Rory is positively delighted to discover that Jess came over with the food just because he wanted to. In her mind, she is only enjoying catching him out in a lie and watching him squirm, but on some level she must also be happy to know that Jess actively sought out her company for an evening.
The Annotated Gilmore Girls 