Gilmore Girls (2000) - 3x07 - They Shoot Gilmores, Don't They?

Lorelai is determined to win the Stars Hollow Dance Marathon and wrest the trophy from four-time champion Kirk, but has trouble getting a partner until she finally convinces Rory to help her dance her way to victory. Dean sits on the sidelines to cheer his girl on, and is soon joined by Jess and Shane, who spend their time making out while Jess keeps his eye on Rory. Lorelai breaks her heel, and Dean takes her place while Luke plays shoe repairman. On the dance floor, Dean realizes that Rory is attracted to Jess and breaks up with her. Rory tearfully runs off, followed closely by Jess, and Kirk is declared the winner once again.