When Rory and Lorelai discuss the invitation to attend Sherry’s baby shower, Rory reveals she has been in contact with her dad for about a month, possibly around the time she got her application for Harvard. They’ve emailed each other and occasionally spoken on the phone.
Lorelai is surprised to learn this, and more surprised that Rory felt that she needed to hide that information from her mother. She is quick to reassure Rory that she has every right to talk to her father, and doesn’t have to hide that from her.
However, when Rory tries to pass on well wishes from Christopher, Lorelai is quick to shut it down. Just because Rory is in contact with Christopher, doesn’t mean she has to be. A healthy boundary! Enjoy, they’re rare.