Friend/Love help!?

O.K. So i'm friends with this girl and we are totally best friends. We tell each other everything and always compfort each other. The only problem is, I am totally and completely in love with her. She made me tell her the truth a few months ago and when i did she was o.k. with it but told me she doesn't like me in the same way and never will because she loves being friends more. All my friends are telling me to move on but I DON'T WANT TO. Don't get me wrong i've started looking for other girls who are nice but i just can't find anyone else. I love her sooooooooo much. I would get the moon and stars for her. I would give anything I have just to be with her. Do you think she considers me a confidante, and doesn't want to risk that? She liked this total jerk this year but she stopped because he got drunk and told her bad things. Geez we're only in high school! but idk what to do. It really bothers me when he talks about gyes she's in love with. I've loved her for three years. Help me plz