I'm so sorry you went through that. You are right, when you've been through a traumatic experience it's all in the moment. So easy to look back with hindsight and see where things could've been handled differently but at the time we do what we can to survive.No one can judge someone for acting the way they do at a time like that.
I know from my own experience at the hands of an abuser ( I'm not saying Caroline was) you dont really think you go into shock.
My ex partner strangled, kicked me and then split my forehead open by head butting me! But at the time i was more concerned about him as he said he was going to self harm. He had snapped my phone in half so i phoned his parents for some stupid reason as I used his phone.
We could all say we wish we did different, didnt phone someone etc but the truth is at times of panic we do just that.
I hope you are recovering well, and that you know none of this was your fault.