Sure, if life was a chick flick, then we'd all be skipping to the mall arm-in-arm with Drew Barrymore. Luckily, it's not, but a new study suggests that female relationships are far more complicated than say, men's.

And if that's not surprising, consider this: One screw-up could send you to the chopping block. "Traditional views hold that women are more socially cooperative than men, but researchers from the Université du Québec à Montréal, Harvard University and Emmanuel College in Boston found female same-sex friendships are significantly less tolerant, more volatile and likelier to degrade based on a single negative incident than male same-sex friendships."

Having been put off more than once by an insensitive or passive-aggressive comment from a female friend, we believe women have trouble overlooking girlfriends' mistakes. Has a friend ever done something that you couldn't forgive?