[ She stops somewhere between 'died' and 'but if I did' as his words sink in. What if Naruto died? ]

I won't let that happen. [ Forcibly: ] Ever.

So you should choose another example or at least choose one that's somewhat believable.

... You didn't get hurt, did you? I would have only revealed my hand if I was sure we were going to win and that I could rely on you.