I'm glad you're looking at the bright side. Like I said in another thread, some girls are great rushers and some are not so great, but that doesn't necessarily reflect on what kind of sisters they are. If you feel a connection to this group at Pref, give them a try -- you will probably end up fitting in. I know that you were uncomfortable with some of these girls, but was that "uncomfortable-ness" due to the fact that you didn't like their personalities, or simply that they were unable to come up with lots of stuff to talk about or put you at ease in an awkward situation? If it's the second, it might just be that they're shy and just as nervous as you were, if not more.
I'm just happy that you're giving them a try.
Let us know how things go.