To the outside world, Nine appeared to be little more than a machine, cold and mechanical. Of course nothing could be futher from the truth, but Nine was willing to let that lie slide. He wasn't emotionless, just efficient. He got every task done as fast as he could for the plan.
Twelve was never like that. He was too emotional, too distracted. Always wanted to know why. He couldn't understand him.
He couldn't understand why they'd abandon a friend and keep running.
He couldn't understand why the plan came before everything else.
He couldn't understand why they could never get close to someone else.
Twelve wanted to know the reason why they did this, but Nine would never reveal why. He couldn't reveal why. There were reasons, always reasons, but they were so deeply embedded inside him, they had become a part of himself. To open up for once would lead to self-destruction.
A.N. I've been busy so a short little thing for Nine's day.