He's all i care for..what to do?

Be straight forward with him sit down and spill your guts if he just wants to be friends you have to then make a hard decision. You will have to pick a friendship or your own good state of mind, being around him after wont be good for you. You say that you are not the pretty type, its not always on the out-side, Im not the best looking guy but I have a 10 on my side, others might not see it but I do and that's all that matters...