If she didnt bully, she should have said i didnt bully you instead of saying i dont remember
But she said that she didn't bully anyone on her written statement. Her written statement recognised the stuff she was being accused of and retelled her side of the story, the argument she had with her friend and how it happened (from her poin t of view), the things she did use to do (like dressing a bit inappropiately and smoking once), the things she did not do (like going with older guys, stealing uniforms and, generally, bullying and physicaly hurting anyone). And at the end, she simply said that, regarding an incident about a drink, she didn't have any memory about something like that and belives she wouldn't do such a thing.
So it's not a "i don't remember anything" excuse.