The one that sounds like me is eccentric, but sad and detached are similar to my personality as well. I have four lovely friends and wouldnt change them for the world, but I am detached enough that I can go without seeing them for weeks and a text a week would suffice. in fact, any more than that and i would be annoyed! Sad- I have often been described as very pessimistic, and i have a very dry sense of humour lol. I hardly ever see the best of situations 
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Some people are autistic... deal with it!
Self-diagnosed female Aspie (AS- 171/200, NT- 26/200)