Who Do You Love by Jennifer Weiner

Second Hand

"Rachel Blum and Andy Landis are just eight years old when they meet late one night in an ER waiting room. Born with a congenital heart defect, Rachel is a veteran of hospitals, and she's intrigued by the boy who shows up all alone with a broken arm. He tells her his name. She tells him a story. After Andy's taken back to a doctor and Rachel's sent back to her bed, they think they'll never see each other again. Rachel grows up wanting for nothing in a fancy Florida suburb, the popular and protected daughter of two doting parents. Andy grows up poor in Philadelphia with a single mom and a rare talent that will let him become one of the best runners of his generation. Over the next three decades, their paths cross in magical and ordinary ways.