I disagree. I really think she was just very upset and emotional and it was extremely hard for her to talk about it. Did you notice how she said she felt very guilty?
The poor thing must feel horrible about not being able to help him that night. I know I would be devastated. They are just kids.
This is going to haunt the poor girl for the rest of her life.
I also think that she is telling the absolute truth because if she wanted to make up a story, it would have been a much more damaging story than that was.