A medically unrecognized disorder characterized by the presence of parasocial behaviors. Those with parasocial personality disorder may struggle to with obsession regarding strangers, resulting in delusions of closeness and/or distressing emotions. Those with HPD often may have this disorder comorbidly.
Some primary symptoms of this disorder are;
Being unable to properly understand boundaries in relationships.
Feeling unusually close with those who are, by typical standards, acquaintances / strangers.
Delusional behavior, such as uncontrollable daydreaming about people in a way that is untypical, such as being their romantic partner or best friend.
Feelings of distress whenever the other person does not understand or ignores requests of closeness.
Stalking behavior that interferes with daily life.
Constant thinking patterns that involve that person, or of situations that allow for you to meet them or content that involves them naturally.
Other behaviors may present in PASPD, however they are unlisted and / or caused by the above behaviors.