I'm agree with Kurb... sounds like either a power trip or a personal issue someone (or some group) had with you.
Otherwise why wouldn't they have brought this up with you instead of just kicking you out?
I was in a traditional frat in college and if we had an issue with a pledge it was discussed with him to give him an opportunity to work on it.
That doesn't happen here at the University of Tennessee. Instead of working with you on your problems they act passive aggressive about it and exclude you from their circle. And no, this business fraternity is pretty exclusive and nitpicky. You don't have to do much to get dismissed. If anyone cares it's Alpha Kappa Psi.