In school I had a lot of people who didn't like me, I never did figure out why most of them didn't, even if I asked someone the response I got was usually something like "I just don't" (????) After a few years of school, most people realized I really didn't care and they kind of gave up on hassling me. A few times when I was told that someone didn't like me I responded "I wouldn't have wanted to be friends with you if you did because I don't like you, so it works out well for both of us." That shuts people up. I had a little bit of a problem with meltdowns if I was touched and got in more than a couple fights because someone would push me or bump into me, and I would hit them. I think that made me less of a target, but also made me seem even more "different" than other kids.
I have made a huge effort as an adult to only have people in my life who are a positive addition to it. I don't have a ton of people that I am interact with as a result of that, but the people I do have in my life love me because of my "oddness". 
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I hate hearing, "you don't seem autistic/aspie". I have a nagging suspicion most people have no idea what autistic or aspie "seem" like in the first place...