IPA: /ˌɛrətoʊˈmeɪniə/
KK: /ɪˌrɒtəˈmeɪniə/
A mental condition where a person has a strong belief that another person is in love with them, often without any real evidence, and may also involve excessive sexual desire.
His erotomania led him to believe that the actress was secretly in love with him, despite never having met her.
Erotomania is formed from "eros" (meaning love or desire, from Greek) and "mania" (meaning madness or obsession, from Greek). The word describes an obsession or delusion of being loved by someone, often without any evidence of such feelings from the other person.
Think of 'eros' as representing love or desire, and 'mania' as an obsession. This helps you remember that erotomania refers to an obsessive belief that someone loves you.