I'm like you -- give me a book, a fire in the fireplace, a cup of tea, and I'm golden. It's not that I don't like people -- but I like them in smaller servings than most. I get that, too -- that I'm miserable and boring -- and not only from addicts. But usually from people who are... not quite comfortable with their own choices.
I've found that people who are secure in themselves and comfortable with their life choices don't feel a need to control, direct, and criticize the choices of others.