Luke: Tomorrow's the anniversary of my dad's death.
Lorelai: Uh, oh, hon.
Luke: And every year on that anniversary, I disappear. I don't work. I don't talk to anyone. I get in kind of a funk. It's like, um...
Lorelai: You have a "dark day".
Luke: Yeah. I have a dark day. I thought I should tell you this because we're in a relationship, and I thought you might wonder why I suddenly don't answer the phone, or I'm not around, why you can't flip your hair and con me into going to Miss Patty's crazy anniversary party.
Lorelai: The hair flip is that effective, huh?
Luke: Combine that with your black dress, you could probably get me to be your backup dancer.
Lorelai: I'll remember that.