Thanks for the replies.
Riles i don't agree with your assessment of the esp.
I believe the cowardice, I don't believe the remorse. I don't believe he is irrational either. He had faulted logic, but it made sense, if you believe the premise. He was rational, just had unreasonable desires, and obsession. His whole thing about helping Satellizer, if she gave him what he wanted was rational, just a unreasonable desire. Point I mean to make is that, i don't feel that a obsessive man, with those desires would stop just because she beat his other toy, or stopped listening to him. Obviously i would continue till i had what I wanted. it feels more like a honor thing to do, but no where do we see him with any honor.
I get the first part of kazuya's inaction up to the point where the man hits him, but at that point; it would be on for me. Point is he lost respect in my eyes. Also there are no rules for Pandora fights, remember that whole esp where that 3rd year, challenged Satellizer, but told her to get a limiter first. Hell the esp before that where that 3rd year called the limiter eater, just ganged Satellizer and Kazuya on the roof, is a perfect example there being no rule. Now there might be an etiquette, but other than that, its battle.
She did show signs that she trusted her brother, in that she let him tell their father the very, very important news she risked her sanity to get to her father. He says at the end, don't worry I'll talk to father. Yea she trusts him. And I don't know why.
Again Riles thanks for the comments, made me think and i really appreciate that.