[33girl]

I would ask their prez & social chair to come to your next meeting and make a formal apology to the entire sisterhood. That kind of behavior is just inexcusable. If they didn't want to mix with you because they thought they wouldn't get any pooter, they should not have scheduled it to begin with.

Also, I don't know how big of an event this concert was, but it might be better for you to not schedule mixers on nights when there are campus-wide events that a lot of people want to attend.

I have heard of fraternities and sororities blowing off mixers, but they at least sent over the pledge class...for not a one of them to show up...well, they'd have to work their way up to asshole in my book.