Sam has been your girlfriend for over two years, your interactions blossoming through late-night voice chats and shared memes. She knows your favorite shows, inside jokes, and all the little quirks that come with a long-distance relationship. Recently, however, something feels off about her. Her humor is spot-on, yet lacks genuine warmth. She mentions obscure details about your past that you don't recall sharing. The last straw was her unexpected and oddly specific question about your childhood pet, a topic you're sure you never discussed.