I dont want to go all feminist or bring up patriarchy but I think as women sometimes we are set up or conditioned to compete with one another because we have been taught that our value comes by how men value us. So in order to have that validation we tear each other down in order to be "valued" by men or society. We really should know by now that we need to stick together rather than divide. Its hard to remember that though. I think every woman, no matter how confident has had an scenario where you are drawn into some sort of competition with another woman whether we realize it as its happening or not.