This may not be the best topic for a poll, considering there are so many options available (not in this particular poll, but for this particular question). My girlfriend and I live together; I love being around her so much, but the lack of space often gets to me (she moved into my 1-bedroom apartment).
I don't necessarily miss living alone... though I do enjoy having my own space sometimes. As we're moving out of here soon, that shouldn't be a huge problem.
SD