A soap opera is an example of a melodrama.
A person who is constantly breaking up and getting back together with her boyfriend in emotional scenes is an example of someone who enjoys melodrama.
Origin of melodrama
- Alteration of melodrame from French mélodrame spoken drama that includes some musical accompaniment, melodrama Greek melos song French drame drama (from Late Latin drāma drama)
From American Heritage Dictionary of the English Language, 5th Edition