Can I be with both of my friends, or do I have to choose?

I have a very close best friend named Amanda. We understand each other perfectly, and my other friend Karina too. Amanda's very Emo, and people say i'm emo because I'm with her. the truth is that I'm not all that Emo. I like bright colors and middle colors. I like to wear a lot of jewelry and I like to act in a different way from Amanda. Now, another one of my friends, Mary, wants me to hang out with her more. Mary is more of a chick, preppy girl that wears makeup and a lot of jewelry. She says that i should hang out more with her since I'm mor elike her. Mary said that I stand out when i'm wtih Amanda and that I'm so pretty and use jewelry and there are guys that are interested in me. That I should make a change, but Amanda doesn't like Mary and I'm afraid that if I am with Mary I'll loose Amanda, but I want to be with Mary. Help please