If you have expressed your feelings for him and he hasn't reciprocated then continuing to pursue him is only going to hurt you. If you cannot be "just friends" with this guy, then you need to stop hanging out with him/talking to him. He is under the impression that the two of you are really good friends. Waiting for someone to "come around" wastes your time to be with someone who truly cares about you.
I'm not good at beating around the bush or sugar-coating things. My responses are never personal vendetta's on your emotional state. It is what it is, whether you choose to accept it or not. <3