Here's a thought from an "oldie" <g> going through a self-created "second rush" as an alum.
The point of sisterhood is supposed to be a life-long process. It doesn't end at four years. Any sorority that told me "what's the point, you're graduating in a year or so", I would say to them, "If your sisterhood expires after only four years, it can't be much of a sisterhood."
Just some food for thought.
--Adrienne