One day, during a chance QQ login, the system recommended a strange woman. The last four digits of her account were 6319, just one digit different from my husband's 6320. Curiosity drove me to click on her couple's profile. On the other end was my husband of eighteen years, our relationship having lasted 7305 days—a full twenty years, two years longer than our marriage. Chapter One: As the mouse hovered over the QQ icon, a strange ache ran through my fingertips before my brain could process it. This was the account I'd used from high school to university graduation. Later, with work, marriage, and children, WeChat became my sole means of daily communication.