Your "story" need not be long or complex. Look at the "story" of those Mario games: hero tries to save the princess from ... a turtle. And if I recall correctly, the story of Slender Man was: you are camping in the woods and at night creepy things happen.
While those are more like a setting and not a story, there was not that much lore coming up to flesh out the story. I never learned why a plumber felt chosen to rescue the princess. Only that they all like to race in karts and that Mario has a brother.
English is not my native language, but to my understanding and the context given, a suitor would be the person doing the activity. Suited would be the quality you want him to have for being a host. But no matter how I think about hit, if the player is the Suitor, it would imply that he is willing to do that and seeks out to solicit himself as a host. It would make a creepy (and fittingly) sense, if the monster is the suitor, advancing itself and literally courting the player and or making him suitable. But frankly, I did not get, if the player or the monster is supposed to be the suitor or if it has a different meaning.