I am the same way. Part of it is social awkwardness/anxiety from just a lack of emotional intelligence (I didn't learn a lot of it growing up), and part of it is my personality type: INTJ. I know that there are limitations to the Myers-Briggs but I have a keen interest in it as it explains a lot about my awkwardness. Doesn't help me feel less lonely, it just helps me to feel a little less abnormal.