I really love him but he didnt know that, what can i do?
Let him know what you feel about him. It's not a crime to love just face him and pour your heart to him. If he has the same feeling for you, fine. If he doesn't don't force it to happen, move on.
if he loves u and u love him then u should propose ur love na?dont wait till he proposes u otherwise u may lose him.he didnt propose u what??????