For some people, perhaps all people, anger has become automatic. They react, that reaction is anger. I think it is because we are so out of touch with our emotions.
Some of those people take a second look and then back off of anger. They go to the person that they reacted to and touch the subject again
Some people don’t. They do not reflect on a situation. The anger sounds right to them and they stick with it. Even as their relationships crumble and their life grows dark, they do not stop. It just seems as though their actions are justifiable.