I've been rather isolated, and may have some kind of social anxiety disorder. Essentially, I'm terrified of making a mistake in my interactions with people, and if I feel like I have, my habit is to run away from the situation and avoid that particular person/situation from then on, even if I end up sacrificing a lot of goals, integrity, and opportunities to do so.
This results in me limiting my interaction more than I should due to fear that other people wouldn't like my awkwardness, and a tendency to be a perfectionist with regards to how I come across (a bad trait because of the fact that I have little experience). It results in very stiff, cool, formal interaction that no one really likes, but doesn't make anyone dislike me either.
My feelings seem to become weak without other people, though. I don't need them to survive, but I do need them in order to be happy and keep my feelings coherent and conscious.