If it's on the lips that he kisses you, it means he's using you. If it's other places (head, hand), then he could be just doing it as a friend. However, if he's saying the two of you are just friends, then he is acknowledging that you might feel otherwise towards him and he is being cruel. Bring it to his attention and tell him to either be your significant other or your friend; he can't have the best of both worlds.
He wants what his body is telling him to get, no different from what you are doing. It is NOT unfair, it is life. When you are hungry you seek food.
I doubt that you are ready for the adult version, but the truth has been stated-- he wants sex. Plain and simple.
There may be other options he is pursuing while keeping you around just in case they fall through, but that's okay, let him. Focus on securing a stable future for yourself, don't worry about any of the boys you know now. If you get pregnant you will miss out on the amazing life with the man you could have gotten.
You have now received the same advice I give to my kids... what you do with it is your choice.
Well the French (aswell as some of the other European country's) place a peck on the cheek as a symbol of Friendship. Oh how I wish we could get back to those days... As for snuggling I can see that as being seen as a form of adoration towards a close friend.