SHERRY: Oh, go shopping some other time and come play with us. Please? There’s just a bunch of people in there that Rory doesn’t know, and having you here would make her so much more comfortable … I meant to extend the invitation to both of you. I just wasn’t sure if you’d . . . Well, you know, there’s lots of food, and booze for the lucky non-pregnant ones, and cake . . . it’ll be fun … I’ll block your car with my stomach.
When Lorelai goes to drop Rory off at Sherry’s baby shower, Sherry is waiting out the front for them, and immediately pressures Lorelai into attending as well, despite how uncomfortable the idea is for her. There’s some guilt tripping on how Rory would like her to be there, some bribery in the form of food and alcohol, and finally just threatening to block her car so Lorelai would have to run Sherry over in order to leave. The baby shower is more or less torture for Lorelai, and this is the beginning of it.
It’s a bit weird that before, Sherry didn’t want to have any relationship with Lorelai, and now she’s insisting that Lorelai come to her baby shower. I guess pregnancy has changed her. Lorelai, of course, doesn’t care for the idea of Sherry either shutting her out or inviting her in!
Sherry has dyed her hair blonde since we last saw her, suggesting she has now turned “bad” in Gilmore Girls logic. It’s a flattering look for her, making her more threatening to Lorelai.
The Annotated Gilmore Girls 