Help!! Otaku copy cat!?

*Before I ask this I want you all to know that yes, I know there are so many of these questions but this type is different* (About ONE person) Ok. At school I have a friend who likes anime like I do. He/she likes what I like which is fine. But after I get excited about an anime con or person/character the next day or few days they copied me. I once told them that I needed more time to watch an anime(not saying. sorry XD) and then the next day they told me that they watched a few episodes. I always doodle anime eyes, anime, and anime characters on my notebooks and then they started doing it. I am in love with an anime character(not saying) and have been and then they say that they're extremely hot, which I said the day before. They copied me with bringing an anime plushie to school. I just realized that they were copying me this week. They're my best friend but I just want them to not copy me and do things on their own. I'm not the cool person at school either. I'm an outcast who has a little group of anime fans. I only have a week left but I can't take it any more. They always show off with anime and I know that they are.Please answer ASAP! :D