Yeah, you're infatuated.
It would be helpful for you to stop devoting your life to her, if for no other reason than your school work and sportslife and other social life is going to suffer. You cannot rely on one person for all your needs. Eventually, you are going to be suffocating each other and then start fighting, not know why, but it's because you haven't given each other space.
Another person can not fill you up inside. Emotionally anyway, physically, I'm guessing she is sans penis, so only you could fill her up inside ;-)
Sometimes I worry about being a success in a mediocre world
-Lily Tomlin