One thing people may or may not know about me is that I'm introverted. I am probably not on the "super extreme happy to be alone in a room for a month" side of introversion, but I am at least on the "I've been hanging out with people for three hours and if I don't get alone soon I'm gonna stroke out" side of introversion. Hanging out is work and I'm much happier to keep to myself than strike up a conversation with a stranger.