Aggressive Behavior in Patients With Obsessive-Compulsive Disorder and Borderline Personality Disorder? "Interestingly, there is substantial overlap between OCD and borderline personality disorder,5 and this subgroup of OCD patients has increased impulsive-aggressive behaviors.2 While compulsivity and impulsivity both involve repetitive behaviors and the inability to delay or inhibit acting on these repetitive behaviors, they involve different driving mechanisms. Compulsive behaviors are driven by the need to avoid or reduce anxiety and discomfort. Impulsive behaviors are driven by the desire to seek pleasure, arousal, and gratification."