Overheard in NY

The site Overheard in NY is full of thought-provoking conversations:

Girl #1: There are like, so many orthodox Jews at the law school. Why would they come to a Jesuit school if they're orthodox Jews?
Girl #2: Well, it's not like everyone else is Catholic.
Girl #1: But Jews are like the opposite of Catholics, they're, like, not even close.
Girl #2: You're a slut; that's not very Catholic.

--Fordham University, Lincoln Center

I don't know what Girl #2 is basing that on.