Jess and Rory have plans to meet up at 9 pm after the winter carnival, as Jess doesn’t want to go. However, Rory “coincidentally” runs into Dean on the way, who is taking his little sister Clara to the carnival. Clara asks if Rory can go to the carnival with she and Dean, and before she has a chance to give an answer, Jess suddenly decides he is going too. He possessively puts his hand on Rory’s back while they walk behind Dean and Clara.
Jess is not only irritated that Rory is being friendly with Dean and that he feels forced to accompany Rory to the carnival, but by Clara’s insistent questions and comments to him. Clara is ten or eleven by now, but behaves more like a child of five or six in this episode.
We’ve never seen her act like this before, she’s always been quiet and rather sweet, if a little young for her age, so I wonder if Clara is deliberately trying to annoy Jess. She may see him as the horrible boy who took Rory away from Dean, and therefore away from her as well. Between Dean and Clara, Jess has the awful time at the carnival he had been expecting.
The Annotated Gilmore Girls 