You are not alone in that boat. The only people I really associate with in the "real world" are people from work, and those are "work friends" so everything is peachy because you have to see them all the time.
Meh. Rarely see my real friends, because they are either hundreds of miles away or wrapped up in their own family issues. Then there are all the "friends" you only see when they need something, and would probably be better off without, but... meh.