It is a weird question and I think I have missed the whole start of the story!!
Right at the beginning, Noelle sees something on the computer that makes her decide that this is the moment she is going to kill herself.
Is it the email from Grace that was sent accidentally? I am totally confused although I managed to follow the whole of the rest of the complicated plot!!
Was it really just an email saying she was irritating? I can't make sense of it?