I can offer some general insights into why someone with traits of psychopathy or borderline personality disorder might exhibit obsessive behavior in a relationship.
Idealization and Devaluation: People with borderline personality disorder (BPD) often experience intense and unstable relationships characterized by idealizing their partners at the beginning and then quickly devaluing them. This pattern of idealization and devaluation can lead to an intense obsession with the partner during the idealization phase.
Fear of Abandonment: Both individuals with BPD and psychopathic tendencies can experience a strong fear of abandonment. This fear can drive them to become excessively attached and preoccupied with their partner, as they seek constant reassurance and validation.
Need for Control: Psychopaths often have a strong need for control and manipulation in their relationships. Obsessing over their partner can be a way to maintain control and keep the other person emotionally attached.
Emotional Dysregulation: BPD is characterized by emotional dysregulation, which means that individuals with this disorder can have extreme emotional reactions that are difficult to manage. This emotional intensity can contribute to the intensity of their obsession with their partner.
Sense of Entitlement: Both psychopaths and individuals with BPD may possess a sense of entitlement, feeling that they are entitled to possess their partner or control their partner's emotions and actions.
Unstable Self-Identity: Individuals with BPD can struggle with an unstable self-identity, leading them to define themselves through their relationships with others. This can intensify the obsession and dependency on their partner.
It is important to note that not everyone with psychopathic tendencies or borderline personality disorder will exhibit the same behaviors or become obsessed with their partners. Each individual's experiences and behaviors are influenced by a combination of factors, including personal history, upbringing, and other mental health issues.
Jodi Arias's case is complex, and there could be various factors that contributed to her behavior. If you are interested in learning more about her case or understanding the psychological aspects of criminal behavior, it's essential to rely on credible sources and expert analysis.