Parasocial Relationship

A one-sided relationship whereby an individual a public figure as someone with whom they share a close, intimate relationship with. The public figure (usually a celebrity) is completely unaware of their existence. Can lead to one-sided emotions such as adoration and also parasocial grief.

Reference:

Horton, D., & Richard Wohl, R. (1956). Mass communication and para-social interaction: Observations on intimacy at a distance. Psychiatry, 19(3), 215-229. https://doi.org/10.1080/00332747.1956.11023049