I think you would 100% fight for your life until the end. Even if you want CTB now, you wouldn't give up in a dangerous situation. This is how we are built.
I want CTB, but I have had several situations where I felt threatened.
I was ready to fight and if I had to, I would tear out my opponent's throat with my teeth. Or I just wouldn't give up in that situation.
Our instincts are very strong.
If you "felt" blood, you would get an additional injection of adrenaline.
It's a bit funny, but these are the facts.
What happens next after such a situation is another matter.
You will most likely go back to the settings you had before such an event.
But maybe it would make you respect your life more? I don't know, I'm not sure.
Some people change their lives after drastic situations.
I don't know if that would be the case for you.
It also depends on what type of threat we are talking about and on your current life situation.
Complicated.