[adpiucf]

It sounds to me like you have a very over-enthusiastic sister who would really like her friend to join your sorority. Unless your chapter has a cut once, cut always policy, give the girl a chance like everyone else. If you have any information about her that you think would be damaging to the sisterhood if she were a member, take it up with your chapter executive board or recruitment team.

I knew plenty of girls who came through as upperclassmen and got bids to their chapters because their friends were members of those chapters.

Also, are you really going to report this as dirty rushing to Panehellenic and get your chapter called out? It seems it isn't your chapter, it is one member who is just really eager bordering on a little obsessive. But she hasn't promised anyone a bid and her friend knows or has the means to know that after hanging around sororities all year and going through recruitment once. And one member being eager does not a bid make.