We had just had sex. One minute, we were kissing and pressed against each other and I was in the safest place in the world. The next minute, I was lying alongside him crying and asking, “What do people do in a situation like this?” And he was saying: “Get divorced.” When I met Erik, I had never been in love with anyone. I was 31, and I saw him across the room at a party. My first thought was that he looked endearing, gentle, like he would never hurt me. We talked about his art and my job as a writer, and when we had our first date on a bench in Union Square we kissed for hours and held hands. I felt like a kid, giddy with excitement that someone wanted me on their team. By the time he told me a few dates later that he didn’t want children, I was already hooked. My thinking went something like this: Some people are never lucky enough to fall in love. I found an …