Ros is NOT in the books. She was created as a combination of a few different whores in the book but she was not in the books.

As definitely all about House Stark, I think that Jaime pushing Bran - while horrible and unforgivable - was done to protect Cersei and her children from Robert if he found out about Jaime/Cersei's affair. Therefore once again Jaime was protecting Cersei. In ASOS he loses his hand then confesses why he killed the Mad…