[...Saix really never meant to bring out someone's backstory, but he still listens. Viola is the first person he's really had a conversation like this with in a while now, so he holds back on his usual 'bad personality'.]

Well, I did say that it depended on the circumstances and individual. If he started to show no care for those who worked alongside him or were close to him, then you would say he was losing himself too much to that anger, wouldn't you?