she jumped ship. Just like Bronn.
I do not think Bronn jumped ship completely. Only a fool would face the mountain and he was still was friendly with Tyrion. I consider him more a realist than a back stabber. Shae's was a total betrayal. Shae betrayed Tyrion's love but to be fair she was a prostitute. Bron was always a rogue. A savage killer but he generally is only as savage as his employer's mandates. He was always out to back the winning side. Both used their bodies for advancement. One for sex the other for killing and both clearly used Tyrion. One shows regret, Bronn, but the other does not, Shae. Tyrion had an escape route for Shae but none for Bronn. Bronn did what an anyone would do and try to survive. ( everyone talks brave but in my army experience friends who will fight with you or for you in a bar fight are rare birds). Shae was safely gone and came back and totally hosed Tyrion.
This already happened so I do not consider it spoiler and it happened several shows ago. In book he takes an offer from Cersei to marry into Stokeworths and refuses to fight the Mountain. He does not completely forget Tyrion though. In TV it is largely the same but he comes and sees him in his cell. The difference is Bronn shows regret at being an opportunity. Shae does not at all.
One thing, I always found fascinating is where Martin got his ideas. I always thought the War of Roses was an inspiration for GoT. York and Lancester sound a lot like Stark and Lannister. it is certainly not the only influence but I believe it is one.
All NBA and Got fans need to watch this it is very funny, we make an appearance in episode 2.
https://www.youtube.com/watch?v=St5PLcxZy44&feature=kp