<span>B. This fatal disease attacks the peripheral nervous system. The immune system attacks the sheath that covers the nerves in the spine and brain. The cause is unknown and is considered an autoimmune disease. Chemotherapy and steroids are often used to treat the symptoms.</span>
I think it would be best to forgive the other person and move on as she'll still have a feeling of resentment if she writes about her feelings and doesn't forget about it.