She’s taking a sacrifice for humankind, and writing the official Dating Manual. Summer's dating two guys (code names - Mr Right, and Mr Right Now), just so she can write a book teaching everyone what and what not to do in a relationship.
She’s suffering through teachers, guys and her parents, just so the rest of the world can date. And why is she doing this? It’s for her college apps, of course. Dirty job, but someone’s gotta do it.