I've been living alone for the past couple of years, and I have to say, it's tricky. I find that when I have the option to be alone, like really alone in my own apartment or something, then I tend to choose it above most people -- a trait I don't like about myself. If I live alone, I have to really inspire myself to get out there, which is why I hope to live with someone next year. If I have a roommate, I tend to find reasons to leave my apartment, which means I'm at least in public and around others, even if I'm not really talking to any of them. Lately I've been in a transition time when I really don't feel like I have any close friends I can really rely on (which is weird...I'm used to having at least a few close confidants), and it's been tough, so I need to make a change anyway. I guess starting to post on this message board is the first step in that direction.
Btw, Alphabetania, you live in Cape Town? That's my favorite place on earth, so lucky you.