Let me just add that I am 19, a sophmore in college, and my girlfriend is 17 and a senior in high school. Now its easier for the older guy/younger girl thing to work out than it is the older girl/younger guy thing, FO SHO! So don't sweat it. Our age differences does create some issues as I am well into college and she is not even out of high school. She while she is just experiencing things that I did 2/3 years ago it gets sort of annoying. I can see how it wouldn't work out in certain situations. If you go to the same school it would probably be harder.
However its a shame you guys didn't screw. When your a guy getting laid helps get that shit out of your system and clears your head. When your a horny virgin boy you let your boner tell you what to do. But after you've been there and done that your a lot less of a dumbass than before.