She left Yale, stopped talking to Lorelai and moved in with her grandparents. That whole storyline was everything Rory wasn't.
Rory Gilmore stole the yacht, moved in with her grandparents, and then decided to drop out of Yale and join the Daughters of the American Revolution. Like, WTF Rory?! Lorelai put her dreams on hold and sacrificed so much to make sure Rory went to college and could achieve her dreams. It was so not Rory to be like that.