(Jeff x Reader) in·fat·u·a·tion /inˌfaCHəˈwāSH(ə)n/ noun an intense but short-lived passion or admiration for someone or something. "he had developed an infatuation with the girl" There once was a girl who was in her mid-teens. Moved out of her parents house and into an apartment, her life became a stable one. That was until that horrible hell of a night.