How come the sororities can not get along?

[annice22]

Why are sororities so catty and bitchy towards other sororities? The fraternities on my campus get along better than the sororities. The guys can hang out at each other's fraternity houses and not get in problems. For examle, one fraternity were throwing horse shoe and invited others for good greek relations.

There are only 5 panhellenic sorority on my campus and yet some of treat each other so bad. There are even rivalaries (not sure of the spelling) against two or more.

I don't know maybe it's just my campus or just girls in general, but it make greek life, no make that sorority life look bad. Why would someone want to join a sorority if they have to deal with this.