summary This case report is about a female patient with an erotomanic delusion, who is convinced that a man is deeply in love with her. Because the specific course of primary erotomania and its response to treatment have been documented, the literature was studied to find out whether it distinguishes between primary and secondary erotomania. The search, however, showed that erotomania occurs so rarely and is defined in such ambiguous terms that it is impossible to divide these subtypes into two separate entities.