Princess on the Brink — Meg Cabot

At last, Mia is a junior. An upperclassperson. Free of her responsibilities as student body president. 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? And for the love of all that is Genovian, why has Lilly nominated her for school prez again? All this is nothing compared to the news Michael springs on her, however. On top of all the mathematical strife, her beloved boyfriend is leaving for Japan for a year. 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.