(Rory is packing everything which reminds her of Dean into a cardboard box).
LORELAI: Sweater’s brand new.
RORY: Well, he [Dean] saw me in it yesterday and he liked it.
LORELAI: Well, then he’s got good taste.
RORY: He said it brought out the blue in my eyes.
LORELAI: Well, then he’s gay.
Gay jokes are always funny in Lorelai’s world. I think it’s all the 1970s films and television shows she watches, when you could pretty much just say someone was gay and everyone would crack up hysterically.