I recently read supermodel Emily Ratajkowski’s essay “Motherf—er” for The Cut about life after divorce as a single mom, in which she describes deciding to f–k her “way into a new kind of woman.” As a young single mom in New York City, I felt let down. Not because I object to women having sex, or think mothers should be chaste , but because her version of single motherhood feels completely detached from the reality I know of raising a child in this city.  A few years ago, when I was eight weeks