What should I do?

I believe that cheating is never the right way. Especially if you are cheating off someone without them knowing. This is especially bad, because you are endangering the grade, and work of your peer for your own gain. However although it is wrong I don't believe it is unforgivable, which is why the Parish Honor Council is a good thing. Not only do they give student a chance to prove there innocence, but it also gives them three chances to learn, and grow from there mistakes.