Some advice

So theres this girl at my school. I try to be nice to everyone no matter how weird someone is but she’s just weird. She tries to hang out with the popular kids to be cool and she always try’s to talk to me. It’s almost like she tries to hang out with the people she wants to be like. Like when I hang out with her she wants her clothes like me and her makeup like me. She likes to be a clone of everyone she likes and it’s like so bad. Its so bad that it seems almost like a disorder. My question is should I ignore her when she comes up to me? Or should I talk to her? I don’t mean to sound like a bitch or anything but it has really gotten out of control.