There is a girl in my 6th-grade class who talks badly about a lot of people in my school. We used to be best friends, but then she got mad at me for covering my paper. Because she was copying off my paper on a pretest. Others told me that she always does that, but I was so surprised that they would say that. I did not believe them, because she was so nice at the beginning of the school year. Then my best friend is having trouble with her friend (who is also my friend).