Does he like me or not?

Okay, so im in love with this guy I've known since I was 2 I'm 13 now, I would do anything for him. But he's been wanting my bestfriend and I'm really sad. But I keep acting like I don't like him as that just a friend so one day he posted on faceboo saying " she sees us just as friends and I wanna tell her how I feel but I can't..... HELP" but idk who it might be about :( I mean we've been through so much ... I can't let him go. My heart is literally breaking. Also, in the hallways at school he'll always stop to give me a hug and do our handshake! And he calls me his sister I'm so confused does he like me ?:(