The features of the individuals with borderline personality include certain instability in relations with other people, tendency to the polar perception of reality, easy and quick transfer from idealization to devaluation or inclination to impulsive emotionality. Their own experiences are processed by them in more emotional than rational manner, and their feelings are expressed spontaneously and creatively. They are willing to experiment with various systems of values and roles; they are charming and cheerful in the company of others. Apart from that, they are clearly on the look-out for the closeness in interpersonal contacts. In clinical terms, a typical set of symptoms observed in case of people with borderline personality includes: changeable or low level of internalization of relations with the object, peculiar defense mechanisms of ego, pathological narcissism and the lack of impulse zone control. It is reflected in the attitudes of people with formed borderline personality, who are alternately excessively demanding and strict, while at different times too tolerant and lenient.