There are many misconceptions about borderline. First of all, 'the Borderliner' does not exist; there are different degrees, and it occurs in both sexes. People often tend to label difficult women as Borderliners, just as difficult men in a relationship are often labeled as narcissistic. This generalization causes some people to be saddled with a stigma, when they are merely clear, dominant, contrary, or explosive. So where exactly does the boundary lie between a mental disorder and a sexual orientation or character trait?