This 1996 song by English alternative folk singer Billy Bragg plays in the background while Henry and Lane slow dance, and Rory sits in another room to read, where she witnesses Tristan and Summer have another fight.
From Red to Blue is the first track from Bragg’s album William Bloke. It’s another song about a relationship break up, but this time between two friends. Although the “red” and “blue” in the song describe British political parties, they might indicate on the show that Rory’s focus from sublimated anger is turning to sadness.
The Annotated Gilmore Girls 