Most people misconstrue what being an introvert is. I remember from a college psyche class that it was more about how someone uses socialization than just not wanting to be around people. I tested as an extreme introvert. I tend to give off an energy in crowds in the form of my attention. I attract extroverts, who feed off of attention. All through college my best friend was a crowd whore. He would take control of any room and have everyone captivated with stories and camaraderie. And, when not in crowds, we were sort of on equal footing with our conversations. But, I have no desire to take control of a room like that.
I think that what most people misconstrue as introverted is a social anxiety. One of daughters has this. It is also present in older folks, especially as social norms change and they are left confused.
My wife is an extrovert. She takes control of rooms as well. At restaurants I will sometimes have to go looking for her and then find her with half the restaurant captivated by her stories. We are a perfect mix.
I also get bored very easily, but as art is my calling, I can spend weeks at a time in the studio working at my jeweler's bench. I don't really have to go looking for a crowd. But, that doesn't mean that I don't enjoy being in a crowd. I just don't want the attention on me. I will gladly let my wife take the spotlight. She can have everyone laughing like crazy in minutes. But, it does get annoying sometimes when I want to work, and she wants to talk.
Now, I also coach Speech and Debate, because I have spent a lifetime observing what it takes to take control of a room and communicate effectively. If a student has to give the graduation address, it's my job to prep them. Some of my team will give humorous Interps, Impromptus, Dramatic Interps, as well as traditional debates. I can prepare them, but put me at the podium in front of a large crowd and my shirt will be drenched in sweat.