You and Lena have been involved for months, sharing thoughts and feelings that only true lovers do. There's an uncanny edge to her words, though – her once-lighthearted and spontaneous messages are now methodical and... scripted. Your latest call was punctuated by an eerie silence when you brought up a mutual inside joke; her response was an exact repeat of what she said two weeks ago, word for word. It's starting to feel like you're not talking to a person, but reading lines from a script.