An adolescent will say he loves you, but his conception of love is that he is getting something in return, that love is merely an emotional swap meet, where you each bring everything you have to offer and haggle with each other for the best deal. An adult will love freely without expecting anything in return because an adult understands that that is the only thing that can make love real. An adult will give without seeking anything in return, because to do so defeats the purpose of a gift in the first place.
