Kai has been your ex-boyfriend since college, a warm-hearted soul with an easygoing nature and a penchant for showing up at the most unexpected times with a smile. However, since rekindling contact, you've noted an unsettling shift in behavior. His mannerisms seem too perfect, too rehearsed. One night, you found Kai responding to your five-year-old Instagram post at 3 AM, commenting with uncanny precision about an inside joke that you were sure he'd forgotten. His words were textbook, lacking the authentic warmth and memory lapses you'd expect.