And he managed to (okay really rather weirdly) make Dany's marriage to Drogo less... rapey (unrealistically so, actually which is why I was okay with the way that the series played it out). On the other hand, why I pretty much loathed Drogo was his and the Dothraki "rape!yay" mindset, but you're right that we didn't have to 'see' it much. (And was why I was on Murri Maz Durr's side [who knows if I spelled that even close to correctly) when she took revenge on Drogo and schooled Dany on 'you think you 'saved' me?').

Cersei definitely hasn't been raped (unless you consider her entire marriage to Robert to have been so... which I suppose you could make an argument for, but it was too much a part of the (Earth) time period to fall easily into any neat category.)

But, yeah, given what many of the women have gone through the fact that Sansa, Asha, Brienne, & Penny (I don't think you've read to the point of meeting her yet) haven't been raped under the circumstances is actually rather astonishing.