Signs of Borderline Personality Disorders

2. The desire to cut oneself, break something, cause harm to oneself and others during periods of intense negative emotions. Self-harm is a form of auto-aggression, expressed in the deliberate or subconscious desire to inflict bodily harm on oneself. Suicidality based on this. 3. Swinging relationships, where a person once seems wonderful and next seen as an enemy, with strong resentment and hatred, especially if it seems that the person is rejecting or turning attention to others.