Jessica often feels uncomfortable and upset in situations where she is not the center of attention
The history of HPD stems from the word hysteria. It wasn't until Sigmund Freud who studied HPD in a psychological manner. The roots of HPD can be traced to cases of hysterical neurosis described by Freud.
As Jessica grows older, her friends start to notice that she is becoming more flirty and dressing differently. They notice that she consistently uses her physical attention to draw attention to herself.
Jessica's friends decide to talk to Jessica about what they have notice and suggest that she do some psychotherapy.
Psychotherapy is the most common and effective treatment for HPD. Such talks can help you and your therapist determine the reasoning behind your actions and behaviors.
Jessica agrees to sit with a therapist, where she talks about her feelings and experiences, and receives the treatment she needs.
Maybe you could try to relate to people in a positive manner, instead of continually trying to get attention from them.