3.10. That'll Do Pig.
From Spiced: Jess isn't going to go to the carnival till Rory runs into Dean and Clara, and then he decides to join them. Jess and dean get into another argument about Dean trying to get back in Rory's life. Mo fists though.
Jess isn't really jealous, just wondering what Dean's trying to do. It's more like Jess is very aware of how he got Rory and he doesn't want to lose her the same way. He actually plays it very cool with Rory.
From mrsvw: Jess does confront Dean at the carnival about how Dean's trying to be friends with Rory. Dean pretty much admits that he wants to be friends with Rory because wasn't that how Jess got Rory, by being her friend. Jess tells Dean that his actions are "transparent". Dean finds Jess's protestations amusing. It seems he wants to give Jess a little of his own medicine, so to speak. Jess isn't jealous just angry. Maybe a bit of his insecurity.
Jess is angry because Dean is trying to be friends with Rory in order to try to "win" her back. Dean brings his sister, Clara, to the carnival and of course she loves being with Rory and wants to include Rory in with Dean and her activities.
Rory doesn't see anything wrong with going to the carnival with Dean and his sister because she thought that Jess didn't want to go.
From mrsv: The difference between Rory/Jess and Rory/Dean is made obvious in ep #10. When Jess talks to Rory about Dean and the friendship-thing, Rory is honest with him, where she never was with Dean when it came to Jess or Tristan. I guess she learned her lesson or has grown up some. And of course it helps that Jess's reaction is not raging jealousy, but a tentative trust.
3.11. I Solemnly Swear .
From mrsvw: Jess in not in episode #11, but he will be back in episode #12.
3.12. Lorelai Out of Water .
From mrsvw: Rory and Lane talk about Jess and Lane does say she hasn't liked him but will try because of Rory (kind of the same tone as Lorelai). The two girls even mention a possible double date with Lane/Dave and Rory/Jess.
3.14. Swan Song .
Jess goes to Friday dinner with Rory.
Rory runs into Dean at Miss Pattys and Jess gets mad.
Jess shows up to dinner with a black eye.Jess and Rory fight about the black eye.
Jess and Luke talk about the fight with Rory.
From spiced: no, Jess doesn't get the black eye from Dean.
Emily is nice about the whole situation [Jess at dinner] in front of Rory, but to Lorelai she calls him a thug or something like that.
And i don't want to say why or how Jess gets the black eye cause it's a main point of the story (he won't tell anyone why) and it's really funny.
[Jess] won't tell her [Rory] how he got it [the black eye] and she thinks he fought with Dean. Then Jess avoids her calls, etc. (This is all tentative per the final script) Luke ends up telling Jess that he needs to get it together or he's gonna lose her.
This same episode, Lorelai and Rory do discuss sex and Rory admits near the end that it is a possibility. And it doens't stem from Emily, Rory and Lorelai talk about it.