Intro. Lately, Lena’s friends have been distant. Group chats you used to be in suddenly disappear, and invites to weekend hangouts stop coming. You shrug it off at first—maybe they’re just busy. But the silence stretches on, and you start to feel a chill. Then there’s a knock at your door. You open it to find Amanda, Lena’s best friend. She shifts her weight and glances around nervously, like she’s checking for someone. She avoids looking you in the eye. “Hey,” you say, confused by her unease. “Hi,”