It may semm cold to say it but you are going to change alot while away at
college any you are most likly going ot outgrow this relationship,
College is full of many wonderous things (in paticular ASU and hot chicks).
In my humble opinion you should make a beak from this relationship when you leave and give yourself a chance to meet new woman at
college. You are going to meet many fantastic people form all different kinds of backgrounds. in a year or 2 your highschool romance will seem very insignificant.
Yes it may be hard to believe now but listen to people that have been there. Make the most of your college years. Oh and also dont rush through it in 4 years, enjoy it, stop and smell the roses. Work will always be there for you dont rush into it you will regret it later. College can be some of the best times of your life. I am still in contact with many of my college buddies 10+ years after graduation and of course my wife whom I started dating my sophomore (read as 3rd year of 6) year in college.
Good luck and have fun in Tempe