I'm Worried for My Friend? Please Help!?

Let her know you are concerned about her and see if she will open up and explain why she's feeling like this. If she does,reure her that you're there for her but she needs to talk to someone who can help her deal with it.If she does not feel ready to do that at the moment just be a good friend and let her know you're there if things get too much or if she needs to talk.If she says there's nothing wrong confess to seeing the paper in her binder and see what her response is. If she still says nothing is wrong just make sure you are there and keep an eye on her until she is ready to open up.