Questions about the leaks - SPOILERS
So I've read the spoiler bullet points for the next three episodes and tried to find clarifications on some of them. So I'm if anyone knows the answers to these, let me know.
-How does Jaime and Bronn end up safe in KL in the next episode and not taken prisoner by Dany?
-What is Littlefinger hoping to accomplish by trying to create strife between Arya and Sansa?
-There's a parlay between Cersei, Dany, Jon, Brienne and others where they show Cersei proof of the army of the dead. She agrees to send KL troops to fight them in the north and then admits to Jaime she lied and plans to let the Walkers crush her enemies. So the question is, when its clear that any enemies who are crushed by the White Walkers end up becoming part of the army of the dead, why would she risk that kind of action? Just pure stupidity?