Rory: They were throwing you a party, Mom.
Lorelai: Sorry, did I miss something? Did I dance around saying “nyah, nyah, nyah” when I gave her the check?
Rory: No.
Lorelai: Did, did I not thank her, genuinely thank her, for everything?
Rory: Yes.
Lorelai: Did I not credit your getting into Yale with them giving us that money?
Rory: Yes, but...
Lorelai: Nuh-uh. No buts. Listen, Rory, I'm not sure if you're aware of how hard it has been for me these past three years to be indebted to my parents. I decided a long time ago that I was gonna live my life without their help, but I went to them and I took their money and I'm not sorry I did, it was the right thing for you, but I don't need their help anymore.
Rory: Fine, but you don't have to just throw it in their faces like that.
Lorelai: I paid back a loan. You're supposed to pay back a loan. I have Polonius and then entire banking system on my side.