Which mental disorder is characterized by unstable relationships, impulsiveness, and intense anger?

Borderline Personality Disorder is characterized by a pattern of unstable relationships, impulsive behaviors, and intense emotional responses, including anger. Individuals with this disorder often have difficulty maintaining stable relationships due to their fluctuating emotions and fears of abandonment. Their impulsiveness can manifest in various ways, such as reckless spending, unsafe sex, or substance abuse, often as a means of coping with emotional pain. The intense anger experienced by those with Borderline Personality Disorder can sometimes lead to conflicts in relationships and impulsive responses to perceived slights or criticism.

In contrast, Major Depression focuses on prolonged periods of sadness and lack of interest or pleasure in activities. Anxiety Disorders primarily involve excessive fear or worry in various situations but do not exhibit the relationship instability and impulsiveness seen in Borderline Personality Disorder. Obsessive-Compulsive Disorder is characterized by recurrent, unwanted thoughts (obsessions) and repetitive behaviors (compulsions), which do not align with the emotional instability and relationship issues characteristic of Borderline Personality Disorder. Thus, the defining traits of instability, impulsiveness, and intense anger clearly align with Borderline Personality Disorder, making it the correct answer.