Oh, no he di'in'. Except yes, he did. He goes on, ranting about how he and Lorelai are meant to be together, as everyone knows. "Emily knows it!" Luke pulls a "Wha?" face, as Christopher continues going on and on about how he knows he made a mistake and how Lorelai needs to be with him. It's not too late! Even Emily told him it wasn't too late! Lorelai is trying to get a word in, insisting she doesn't know what this drunk fool is talking about, and Luke excuses himself from the drama. She follows, and gives Christopher a beautiful brush-off, finally yelling him down, viciously.
Cousin Marilyn sideswipes Lorelai on her way out, dragging her over to get the picture made. "You cannot keep a room full of Anglo-Saxons waiting for cake this long -- they start to form more clubs."
The family gathers in front of the cake, its two youngest members looking uncomfortable for their own reasons, and in a beautiful ten-second scene that I hope wins ten Emmys, right as the flashbulbs pop, Lorelai leans in to Emily's ear, hissing, "You and me. We're done."