brooklineu, I'd strongly encourage you to change the names of the sororities in your story. Keep the structure if you like - say there are 8 sororities at UW, 4 are big and 4 are small, then have 4 big and 4 small sororities in your story (I'm making up these figures; I don't know UW's Greek system at all). But I for one would hate to read something like "...and she cut AEPhi immediately, because blah blah blah..."
I am deliberately posting this rather than emailing/PM'ing, because I'm sure I'm not the only one who feels this way.
Just my $0.02