What is the main conflict in Princess in Love by Meg Cabot?

Mia struggles with juggling her different duties as a royal person, such as her princess lessons with Grandmere, along with the things she wants to do as a regular teenager. One of the biggest issues Mia has to deal with is her grandmother, Grandmere. Grandmere is providing princess lessons to Mia to teach her how to be a proper royal. Grandmere also dispenses some romantic advice on how Mia should handle Michael and other boys in order to win them over.