Solo surrounded by people

It's incredibly difficult to be in this position: a job where you are surrounded by people (parents, colleagues, and, of course, students), yet your regular, outside-of-work life is incredibly lonely. I've had (rather nosey) colleagues ask me if I go out, why I don't have a boyfriend, what I do with my time. In all honesty, I don't go out. I know no one outside of work. I don't have a boyfriend for a trillion reasons, some of the most prominent being my unattractiveness, my lack of time, and simply not knowing anyone. Even if I was completely gorgeous, is it possible to meet anyone if the only time you're away from work is your monthly trips to the grocery store or your daily trips to the mailbox? Without my job, I'd be a hermit; a shut-in; a talentless Emily Dickinson; a "New York death" in Phoenix. I wish someone would just pick me up and set me down in an already created life of friends and family. As a student, school was a natural way to make friends, but now, as a teacher, it's the opposite. I have zero local friends apart from colleagues. What do I do? Honestly, what do I do?