RORY: Why didn’t you go to Madeline or Louise about this? [the date with Tristan] I mean, they seem to get that “fabulous little top” thing.
PARIS: Oh yeah, that they get. The whole supportive, “You’re going to be fine, and not throw up twelve times on the way to his car” thing – that they don’t get.
From this we can see that Madeline and Louise aren’t true friends to Paris, and that she has sought out Rory for advice and comfort over them, even though it means driving half an hour each way before her date. Paris clearly wants Rory to be her best friend, although the show will throw spanner after spanner in the works of that desire.