Yes, Devin Tomb knows that TV isn\u2019t real life. That \u201cSex and the City\u201d never explicitly promised her anything. And yet, it was hard not to believe in the future the show presented. Devin figured she, too, would have a squad of single women for adventurous nights and opulent brunches well into her 30s. So what happened? Email us at loveletters@boston.com.