People think I'm arrogant because I'm attractive and intelligent -- but I never talk?

Arrogant is not the first word that would pop into my mind. Shy maybe. Socially maladroit perhaps. Better you should not worry about it. A lot of intelligent, creative people don't converse well. Why don't you take that divergent thinking and put it to work writing a book. Or a screenplay. You can probably come up with something way more original than most of what you see on Amazon.