I'm going to stop talking to this girl in my class. What do you think about that?
Did she do something to offend you?
Yes, she doesn't understand the meaning of a platonic relationship.
Perhaps you should be more forthcoming with her. It's really rather rude to just suddenly stop talking to someone. It could cause a lot of classroom drama.
No, I never intended on anything else than friendship to her anyway.
It is annoying when someone can't take a hint. You should just be honest with her so she would leave you alone for good.