erotomania (delusional disorder)
Psychiatric term for a delusional disorder in which the patient believes another person is in love with them. Used in clinical contexts.
Erotomania is a mental disorder characterized by the delusion that another person is in love with you.
erotomania (excessive sexual desire); hypersexuality
General term for abnormally strong sexual desire. Often used synonymously with 色情狂 (shikijōkyō).
See also: 色情狂
He has a tendency toward hypersexuality and constantly talks only about sexual topics.