unknown: most likely, he/she will agree with you in a few years. of course, how we see love, relationships, attractiveness etcetera changes as we mature - but that does not change a bit that when your hormones are raging, you do feel love. maybe later on, youll see the whole affair as less serious but when its there, its there.
other than that, when my former girlfriend and i came together, she was 14 - and more mature in terms of love, committment and responsibility than anyone i ever met. i was 21 at that point, so quite beyond the age of raging hormones. (before anyone complains: not everywhere in the world is jurisdiction as idiotic as in the states. age of consent in germany is 14)