Once upon a time there was a boy who loved a girl, and her laughter was a question he wanted to spend the rest of his life answering. When they were ten he asked her to marry him. When they were eleven he kissed her for the first time. When they were thirteen they got into a fight and for three weeks they didn’t talk. When they were fifteen she showed him the scar on her left breast. Their love was a secret they told no one. He promised her he would never love another girl as long as he lived. What if I die? she asked. Even then, he said.