Even if you go back to Cody's biggest blow up (when he was in the HOH room with Paul and Jessica right after Paul put them on the block), he got heated, realized he got heated, tried to leave, and Paul escalated the situation. Yes, Cody was in the wrong and initiated the blow up, but as Cody said, he didn't even want to be up there, Jess and Paul insisted he went. And when he started to get heated he left, yet Paul knew exactly what buttons to push to get him going even worse. Oh, you're going to get in my face? You're an immature child, etc. Oh you're going to walk away from the situation? You're a ***** who can't handle it, etc.
Everyone throws that blow up on Cody. Sure it was his fault, but Paul knew exactly what was doing and made sure it happen.