Hiya. Horror is an understatement! Egad, sharing the limelight when I wanted it? Huh? No way!
As for the I/E, I see what you mean. Maybe it has to do with our need to recharge after particularly intensive people sessions? I know, for me, I used to be way, way, way on the E side of things and almost could not stay alone. After spending 3 years in a rather boring area with no social life, though, things balanced out more nicely. Now, I can entertain myself quite well but will never sit for very long doing nothing - except maybe meditating, which I've taken up recently so that's been good.
I am definitely still an ENFP but it's strange since I don't socialize too much these days but when I do, it's like crazy, happy girl has arrived - as long as I like the company, mind you. Otherwise, I act like an introvert and especially in new situations because I must gauge the players and put them in their corresponding boxes, LOL. Once I've figured everyone out, I come out and let the light shine.