What I think is interesting is how more than a few people here have mentioned close bonds with higly sociable people.
I think Worrydoll said that one of her friends is highly sociable and a few people mentioned going out with someone highly sociable.
For me, it is more that both my siblings, especially my older one, are highly sociable -to the point of the polar opposite of me.
I think that this is particularly interesting.
Eventhough I've avoided social interaction to a fair degree because of social anxiety, when I'd begin at a new university/school I would often be 'adopted' by the popular crowd. ...I also had a bit of a romance with the loudest biggest show-off in the group. His personality was similar to my elder sister.
and when we were small, my mother said that my brother and sister got most of the attention, whislt me, who was quieter, tended to get the least attention. ...I think that this has sort of set-up the pattern for my thinking that I need to work hard to be valued and may also give me an inferiority complex about being introverted and not extroverted. so, this attitude that I need to compete and that only the strongest is successful sets up the similar attitude that without meeting such a standard then I would be a failure; and then 'introversion', shyness etc is seen as 'failing' in my mind. Also, I am simply a perfectionist and highly sensitive innately -otherwise, all people with such a family set-up would have social phobia.
I just thought that this was an interesting possible diagnosis that may give a look into what we think at the back of our minds.