[oop - her expression falters a little, somewhere between guilt and uncertainty. but.]

... I'm sorry, I don't mean to offend you. I'm sure you're very capable.

But even the most capable people can disappear in an instant, even if I have faith that I likely don't have anything to worry about. It's just that if you're here for my sake... I don't want to easily agree to the idea that you could be expendable in any way.

[she can maybe get used to the idea of having a bodyguard just for practicality - less sure if she can even remotely agree to the idea that his life or well-being mean less than hers on a moral level]