She hears a voice in the school cafeteria threatening to kill everyone. Buffy is convinced that a student is planning mass murder. She sees Jonathan in a tower with a gun and confronts him. Buffy points out that he has all this pain and feelings and he's being ignored. Jonathan doesn't think Buffy would understand since she's beautiful and athletic. Then Buffy responds with the following speech:
You are an idiot. My life happens to, on occasion, suck beyond the telling of it. Sometimes more than I can handle. And it's not just mine. Every single person down there is ignoring your pain because they're too busy with their own... The beautiful ones. The popular ones. The guys that pick on you. Everyone... If you could hear what they were feeling. The loneliness. The confusion. It looks quiet down there. It's not. It's deafening.