Suddenly, she doesn't want to die. She has no real reason not to, no sudden revelation, except that it's equally pointless to die as not to die. Why doesn't she die? She lives because she's meant to live, because she's already alive and it's comparatively easy to stay that way. She lives because, even though she doesn't know what it is, there must be a reason why she's here in the first place. She lives because either she's not as brave as all the dead girls who've gone before her, or she's actually braver - it's hard to tell.