One of the former rape-ees is this woman from Asshai (yes, that's the actual name of the place, haha) who wants to help by treating Drogo's wound. The bloodriders don't trust her, but Dany does. Mirri Maz Duur was being raped, her people were being murdered, and she's some sort of demon sorceress, but other than those things, what's not to trust? The most damning evidence against MMD is that Martin spends far too many words talking about her for it to be a normal healing. Dany has experienced so much hardship and despair yet somehow remains far too trusting and innocent.
Tywin decided to put Tyrion in the vanguard of the attack, which can be interpreted as a big honor or even bigger insult. Tyrion doesn't seem very pleased that he wasn't given command -- Tywin put GREGOR in charge. Did Tyrion expect to be the leader or something? Will men even follow him into battle? Also, if you want to survive a war, there's no easier way than to be the tiny dwarf who fights next to the largest guy out there. Despite this, Tyrion storms off, upset at his social status among Tywin's inner circle. Meanwhile, he has more important things to do, like entertain the whore that Bronn found. Her name was Shae, and she was a good actress. Tyrion "suspected" that her delight during sex was faked. Come on now, Tyrion -- you're supposed to be cunning and intelligent. I'd put the percentage chance of Shae faking an orgasm with the "Giant of Lannister" at roughly 800%.
The next day's battle came early. I like the way Martin writes his battles -- POV really makes it seem quite personal and less like the scientific "200 men move left" type of sterilized storytelling. Tyrion actually does decently in the battle, holding his own with the help of some luck. Half his barbarians died, but I doubt Tyrion cares very much. The important thing is that he (and Bronn) survived the battle. Afterwards, it turns out Tywin counted on Tyrion and his men breaking, so even in victory, Tyrion disappoints his father. The battle on the whole was a huge success, but it seems Robb wasn't there and is making for Riverrun instead. I'm not going to pretend I understand all the tactics and who has what army and where, but I assume Tywin thought he was engaging the entire Stark army but only part of it was here, so the Lannisters fell for some sort of fake out.