I really like him

hi I like this boy and it seemed like he liked me back wich he does but he barely shows it. our school just had a dance and we dance 2-gether .the same night he asked me for my #.when I finally saw him at school again he acted like I did not exist hes not in the same grade as me . he told my friend to tell me hey so what should I do?

not worth thinking about him. ignore him in time you will get over it too.