To write about love is humbling because, no matter how much we learn about it, aspects of love are still mysterious. Perhaps that’s why love, specifically, romantic love, is one of the most explored topics in literature, art, music and, increasingly, in the social sciences. We dissect it, try to understand it, long to find it, and yearn for it to stay alive when we do. We can’t live without it. Every love story is a snowflake.