Final answer:
The pattern of behavior described is most likely indicative of Borderline Personality Disorder (BPD), which is characterized by unstable relationships, impulsive behavior, and intense emotions.
Step-by-step explanation:
The pattern of behavior described in the question is most likely indicative of Borderline Personality Disorder (BPD).
BPD is a mental health disorder characterized by unstable relationships, impulsive behavior, and intense emotions. Some common symptoms of BPD include fear of abandonment, difficulty controlling anger, and self-destructive behaviors.
In the case of Jenna, her constant need for attention, explosive anger, and self-harming behavior (overdosing on tranquilizers and alcohol) are all indicative of BPD. It's important for individuals with BPD to seek professional help, as therapy can be effective in managing the symptoms and improving their quality of life.