RichThesaurus
fiancé
vs
the object of one's affections
fiancé
noun
A person engaged to be married.
A man who is engaged to be married; the man to whom one is engaged.
the object of one's affections
How often have the words
fiancé
and
the object of one's affections
occurred in a corpus of books?
(source:
Google Ngram Viewer
)