Delia Ephron had struggled through several years of heartbreak. She’d lost her sister, Nora, and then her husband, Jerry, both to cancer. She channeled her grief the best way she knew: by writing a New York Times op-ed. The piece caught the attention of Peter, a Bay Area psychiatrist, who emailed her to commiserate. Recently widowed himself, he reminded her that they had shared a few dates fifty-four years before, set up by Nora. Delia did not remember him, but after several weeks of exchanging emails and sixties folk songs, he flew east to see her. They were crazy, utterly, in love. But this was not a rom-com: four months later she was diagnosed with AML, a fierce leukemia.