I am very social and make friends easily but I don't have many real friends because i don't need them and find many others to be demanding because of a "friendship". I would never ask my friends to help me move… I invite them to come over for dinner.
I can also be difficult to deal with, because I will take over if I feel something needs to be done and nobody is doing it. My boss once came to one of my construction meetings and in the middle started to prattle about some shit..I interrupted him and told him we needed to stay focused on the issue. He shut up, and never came to another.
So perhaps I am in the middle, I don't need nor require large social circles, but when I am in them, I tend to take over…..not really smart, kinda arrogant, but shit gets done!