Christopher takes Lorelai to see the newborn Georgia in the nursery (Rory is understandably asleep). He is still on a high from watching the birth of his second daughter, saying that it was amazing, and he’d never seen anything like it.
Lorelai, with devastatingly understatement, agrees that she does know how amazing it is, and that Christopher hasn’t seen anything like it before. Her expression says that she is reliving her own nursery moment, which we see in the upcoming flashback.
Due to the fact that we don’t know what happened, it isn’t possible to know for sure whether Lorelai feels resentful that Christopher wasn’t there for Rory’s birth, or whether she feels a b it guilty for shutting him out and denying him the chance to see his daughter being born.
The Annotated Gilmore Girls 