I did it over the phone. I used the whole "we're going to different schools" bit to make me seem like less of an ass (as women commonly do, no?). She cried hardcore and asked to see me in person. As we had been going out that long and she's a good girl I decided that I would meet with her to answer any questions and say goodbyes.
Basically she just cried somemore and wanted to hug and she tried to kiss me a few times which I subtly turned down. I told her we can remain friends while going to school (which I don't really plan on following through on) but I just wanted to make this easier on her.