Oh do you!  The words "fairy tale" can be used in other contexts too, like a "fairy tale romance" or a "fairy tale ending."
Fairy tales were often used to describe a happy ending to the story or a fairy tale romance.
My mom used to read me fairy tales every night before bed. Nice!  Did they include the usual dwarfs, elves, gnomes, griffins, unicorns, magic and enchantments that fairy tales typically have?? Oh yeah! I loved a good story with a Prince and a Princess.
In less technical contexts, the term is also used to describe something blessed with unusual happiness, as in ''fairy tale ending'' (a happy ending) or ''fairy tale romance''.