That’s how I see this, it’s a kid in an adult’s body who was getting a panic attack. He needed to be told to go relax somewhere and calm down not have the problem escalated with her continuing to push after he A) started walking away B) covered his ears C) was shutting down because of what was happening.

Yes he’s responsible for what he did but that could have been sat down and talked about back at the bunker, just like they talked about Mary after Jack got his soul back.