I can relate. I've asked myself the same things a couple of times just to realize hours later that's not the reason. Funny thing is that I hate to be judged or escalonated, I hate polarizing the world in two opposite ends, but I act exactly like that when I assume other people are disliked because they're "X". I'm being a judgmental jerk.

On the other hand, are you sure people don't want to be around you? As much as it's difficult and even painful, I must assume I avoid most people a lot, I avoid them like hell. I can't fully blame them, even though I feel just like that sometimes. I don't give myself enough credit to think others should and then I go on switching the causes for the effects (and being a jerk, sometimes).