Rory got a pager message from Dean while she was at dinner, but instead of phoning him back right away, she called Lane’s house (Lane didn’t come to the phone). When she gets home, Lorelai goes for a shower, telling Rory to find a movie for them to watch. It was after 9 pm when they were at dinner, and they talked more and had a half hour drive home, so it must be around 10 pm by now, yet they’re planning to watch a movie as well!
Instead of getting a movie, or phoning Dean back, Rory calls Jess. When we see him, he is reading The Fountainhead, as instructed by Rory. He is also playing with Rory’s bracelet, gazing at it softly with a misty smile. The phone call, ostensibly about literature, is very playful, and this episode marks the beginning of Jess and Rory’s mutual flirtation.
And Rory is still clearly very annoyed by Dean going to Lorelai when they had an issue in their relationship, because she isn’t returning his calls.
The Annotated Gilmore Girls 