People who sometimes have best friends, but they always seem to leave. People who have loads of good friends but they're all better friends with someone else. People who accidentally push people away before they can get too close to them. People who are too shy to get that close to someone. People who feel like there must be something dislikable about them because they're no one's favourite. People whose friends all pair up with each other for activities and they're left alone. People who feel a vague sense of isolation, because they don't have that one person who can cheer them up and that they can hang out with without losing energy.