[WVU alpha phi]

I think we may be blowing it out of proportion- she knows people in fraternities, she didn't say she's over there every single night. I agree with the above posters, definitely don't be "that girl". But fraternities will most likely come up at some point during rush conversation (about mixers) and you could maybe say "oh yeah some of my friends from home are XYZs" or mention that you saw how much fun your fraternity friends have and that made you interested in joining a sorority.