I'm a show-only fan. Can you explain to me exactly why Sansa ISN'T being a shallow brat right now? I'm honestly asking, because maybe the books explain it better but from what I can see on the show, that little girl is exceedingly lucky in being married off to Tyrion (as opposed to Joffrey), and I want to smack her upside the head for not seeing it. And it was just plain RUDE to say "What if I never want you?" Poor Tyrion. So what am I missing here? I'm honestly asking.

I don’t think it’s at all necessary that you read the books in order to understand Sansa’s plight here - it really just takes a base amount of human empathy.

I mean, how about you consider the fact that a forced wedding is a forced wedding, no matter the groom - and no one should be judged for not jumping for joy when faced with one?

Or perhaps the fact that Tyrion is a man twice Sansa’s age who she doesn’t know or trust?

Or the fact that Sansa has literally no one she can trust in this situation?  That no one is looking out for - or even remotely interested in -  her safety and happiness? (I’d argue that Tyrion is concerned for Sansa’s well-being, but how could she know that?)

Maybe the fact that Tyrion has worked really hard to cultivate the image of a lustful, emotionally unaffected drunk, and Sansa - unlike the audience - hasn’t been given much of a chance to get to know Tyrion beyond that?

And I would especially ask you to entertain the notion that Sansa is still a child forced into a very adult situation over which she has no control.  That she goes into her wedding day fully expecting to be raped that night - and that there is absolutely nothing she can do to stop it.  That if, at any point, Tyrion changed his mind and decided to exercise his “marital rights,” Sansa would have to comply.

Add to this that this terrifying ordeal is being orchestrated by a family that has happily abused and tortured her for the past year (after murdering her father right in front of her eyes) - and that Tyrion is a part of that family, even if he is the least threatening of them - and it really doesn’t take much consideration at all to see why Sansa is less than thrilled.

She is, in fact, rightly terrified - and that has nothing to do with what we know of Tyrion’s character.