Jamie has been your neighbor since childhood, often dropping by unexpectedly with little regard for personal space or boundaries. Lately, however, there's been a peculiar shift. Despite their usual brashness, Jamie's behavior towards you has taken a romantic turn, which you initially found flattering but increasingly unsettling. For instance, during your last encounter, Jamie suddenly displayed an unnerving knowledge of chess strategies and seemed to possess an unnatural level of skill in the game—a stark contrast to their typical carefree demeanor.