Strange story with stupid characters. What was the point in intentionally hurting someone who loves you, by saying you're going to cheat on them and behaving like all of your previous relationship was merely a farce? It was kind of cruel, so i get why that other girl got hysterical. Still, using suicide as a threat is also a very bad idea, although i believe it is quite common with children and teens. All in all, it is quite realistic story of stupid schoolgirls, who can't normally communicate and understand their own feelings, and unhealthy ways of solving said problems.