Fat Angie by E.E. Charlton-Trujillo

Angie is broken — by her can’t-be-bothered mother, by her high-school tormentors, and by being the only one who thinks her varsity-athlete-turned-war-hero sister is still alive. Hiding under a mountain of junk food hasn’t kept the pain (or the shouts of "crazy mad cow!") away. Having failed to kill herself — in front of a gym full of kids — she’s back at high school just trying to make it through each day. That is, until the arrival of KC Romance, the kind of girl who doesn’t exist in Dryfalls, Ohio. A girl who is one hundred and ninety-nine percent wow! A girl who never sees her as Fat Angie, and who knows too well that the package doesn’t always match what’s inside. With an offbeat sensibility, mean girls to rival a horror classic, and characters both outrageous and touching, this darkly comic anti-romantic romance will appeal to anyone who likes entertaining and meaningful fiction. (Goodreads.com)