Gracie has never felt like this before.  One day, she suddenly can’t breathe, can’t walk, can’t —and the reason is standing right there in front of her, all tall and weirdly good-looking: A.J. But it turns out A.J. likes not Gracie but Gracie’s beautiful best friend, Sienna. Obviously Gracie is happy for Sienna. Super happy! She helps Sienna compose the best texts, responding to A.J.’s surprisingly funny and appealing texts, just as if were Sienna. Because Gracie is fine. Always! She’s had lots of practice being the sidekick, second-best. It’s all good. Well, almost all. She’s trying. Funny and tender, goes deep into the heart of middle school, and  finds that even with all the heartbreak, there can be explosions of hope and moments of perfect happiness.