[ First “cool,” now “fire…” Is there no end to the madness of his lingo…!

This time, at least, she picks up on how he means the words by context. And ultimately, it’s all less important than the sentiment he’s expressing, that gratitude or what she did when they fought side-by-side. ]

I… Um, you’re welcome.

[ She says it, despite the fact that she doesn’t feel like she deserves that thanks. ]

And thank you, too. You fought so valiantly - and you were so fast, I could hardly keep track of where you were!