It is a symptom of Borderline Personality D/O. Symptoms of other personalilty disorders are similar, and may "cross over". Other personality disorders are: Narcissistic, Histrionic, Obsessive-Compulsive, Paranoid, Schizoid, and Psychopathic,(Antisocial ) as well as others. The DSM-IV notes that personality characteristics are "inflexible and maladaptive, and cause either significant functional impairment or subjective distress." Personality disorders are chronic, do not come and go, and originate in childhood or adolescence, and continue throughout adulthood. Borderline P. D/O is part of Cluster B D/O, along with Psychopathic (Antisocial), Histrionic, and Narcissistic. Cluster B is the dramatic,emotional, or erratic cluster, according to DSM IV, which is the "Bible" for mental health professionals, diagnosing mental illnesses. Sorry for the long post, hope this helps.:blowkiss: Nonni