Losing a friend sucks.....

My best friend and I used to be really close....then school needed and i broke up with my bf...Now my best friend is hang out wish my ex and completely forgot about me. Every time I try to get close to him again it feels like he tries to push me away. I want to cry! I miss him so much! I don't think he realizes how much I cared about him (As a friend).I wanna joke around and do stupid things with him again. But now that we are starting high school and going to different school I realize that our friendship is over. I feel like he doesn't Even care! He can talk to all of his other friends but he wont talk to his best friend. He's changed a lot. All I want is to have my best friend back.....Is that to much to ask??