Both of them make me want to yell. I know what Corey's problem is, but Nathan has completely lost his center, or never really had it to begin with. Nathan is being impulsive, it's what the anger makes him do. And without Corey to balance it out and make it go away, well gasoline on a fire.
Also Nathan's cleaning habits is born from me, it's what I do when something is wrong. I'll scrub everything especially if I'm actually mad. Usually it was my ex's signal that he'd done something (or not done something) because he'd come home and smell bleach and yell "I don't know what I did but I'm sorry!"