Borderline personality disorder is mental health condition that is characterized by unstable emotions, impulsiveness, relationship problems, an an unstable self-image. Manifestations of this disorder also include aggressive behavior, difficulty controlling emotions and impulses, a low sense of self-worth, and frantic anxiety of being abandoned. Other characteristics of this disorder are long-term feeling of emptiness, frequent and sometimes violent temper tantrums. People experiencing borderline personality disorder often suffer from other conditions such as depression or eating disorders. The problems you've mentioned seem to be as a result of the disorder.The cause of borderline personalty disorder is yet unknown, but it seems to run in families. The treatment includes medical counseling as well as medications such as mood stabilizers and antidepressants.