RORY: Look, things are really good for me and Dean right now, and I don’t want anything to mess that up. Especially not something that meant nothing at all to me and I wished had never happened in the first place.
Ouch. That genuinely hurt. If Tristan wasn’t already hellbent on making things difficult for Rory and Dean, I think that definitely sealed the deal.
I don’t think Rory is being entirely truthful that her kiss with Tristan meant nothing at all – it brought up so much emotion that she cried and was able to begin grieving the loss of her relationship. But that would be an incredibly awkward conversation to have, might be more insulting than what she actually said, and not really helpful in setting boundaries with Tristan.
(I don’t think she’s correct that things are “really good” with Dean either – he’s jealous and controlling, she’s scared to be honest with him because of how he’ll react, they have few interests in common, they have different values, she’s slowly becoming intrigued by another boy. But she’s not being dishonest, she just doesn’t have the experience or perspective to see these things for herself).
The Annotated Gilmore Girls 