Her Side: Crying with the pain of love in my heart

A girl on her last year of highschool, ends up talking to her crush. Both of them talked the entire class period about each other, ended up exchanging phone numbers. Later on they both fell in love with one another. A few weeks passes by with the two in a relationship. But people change, and her boyfriend/girlfriend was no exception. So how does she feel? What's her side of their love story?