"We met on the first day of high school in a small town in the middle of France. We were in the same class for only one day before Eugénie switched to be with her friends. That night, I went home and told my mother I'd met a very nice girl. Years later, we found out she'd written about me in her diary the same day. We were friendly for two years before I asked her to prom. She had already said yes to someone else, but decided to go with me instead. A week later, we snuck off to a rugby field during a friend's birthday party. We listened to music, looked up at the stars, and kissed for the first time. Then came different universities and years of long distance. We'd FaceTime for hours a day, eating, studying, watching Downton Abbey. Not even talking half the time, just living our lives on a screen together. After eight years apart, we finally moved into a tiny flat in Paris. We were living in the same city for the first time in our relationship. I was about to propose, and just as every...