These people want a relationship, and intimacy. They want the feeling of being loved more than sex. That’s why its a para-social relationship. These people believe that the performer thinks they are special, that they have a different and special relationship with the performer. The performer truely understands them, and they understand the performer.
They twist and warp anything so that its fits that worldview. Maybe they buy a video, and in it the performer says, “this is just for you”. Now, they may say that any lots of videos as part of the role play or whatever. But to these people, thats a sign of their special relationship.
That’s why they can be dangerous. If that spell is ever broken for example they find out the performer has a boyfriend. They can lash out violently, or look to humiliate the performer by sending their work to friends and relatives.