I have to agree with most of what Rebellious said but, I do think that people generally fall into two categories: 1) Loners 2) Joiners. While most "Loners" can deal socially but,prefer to be alone or with a limited number, "Joiners "don't do very well unless surrounded by a crowd. These are the same people who before ending one relationship, are jumping into another. I think they are confusing being alone with being lonely.
Curlygirl