My deskmate is a woman. Why does she always like to help me in class?

Hehe, you want to say that she likes you? I'm not sure about that, but she certainly doesn't hate you. She can be friends. Sometimes girls just want to help others, but most of them help you because they like it. If you care about you at ordinary times, you should take good care of it. I missed a lot at that time. Don't make the same mistake. You may regret it later. Even if it's not a relationship between men and women, at least have more friends. Cherish it, and you may become bosom friends in the future.