Hey Shadix
Didn't read all the replies, just the initial thread. From my own introspection, one strongly tends to like and appreciate people who are similar in certain things to oneself. And I think that is also the case regarding attraction to the desired sex.
So if you're introverted (like me), you're more inclined to have friends and be interested in spouses who are introverted, and verse visa if you're extroverted. I think tho it's a truth that extroverts so to say tend to scream their own opinions and thoughts all over the place, and intorverted people tend to not show their own opinions so straigh forward. So there might be a tendency in society to believe extroverted people are more attractive. But I as an introverted girl who befriends herself to almost exclusively introverted people can tell you that's not true!
I wouldn't snap back at someone who calls you introverted. I don't think it's ment to be disparaging. However, if you feel that someone is mocking you for the way you are of course you should defend yourself.