I know first impressions can mean everything, but sometimes you have to give new members a chance. Trust me, I wondered what the hell my chapter was thinking the year I was a recruitment counselor and we got a huge group of girls- half were really awesome, half were full of attitude. It was like the bipolar sorority. But after a little time spent with all the girls together, the ones who were in it for the "wrong reasons" (ie. Shacking up with fraternity guys, etc.- I quoted that because not everyone thinks those reasons are wrong) either straightened up or realized that their ideals were just not the same as those of the rest of us.
Hopefully this girl is just nervous; she may be thinking that being in a sorority is a total change of lifestyle (which it can be), but it may not be exactly what she thought it was. And if all else fails, try to think that all things improve with time... hopefully.
