Princess on the Brink By Meg Cabot

At last, Mia is a junior. An upperclassperson. So why is it that everything is going so terribly wrong? What is she doing in Intro to Creative Writing? When she has made it through Algebra and Geometry, why must she be faced with Precalculus? All this is nothing compared to the news Michael springs on her, however. Her beloved boyfriend could be leaving for Japan for a year—or more! Precalc has nothing on preparing for the worst separation ever!

Turns out there is one way she might convince Michael to stay. But will she? Or won’t she? No matter what, Mia seems headed for disaster.