I'm afraid that's vague enough that it's essentially guesswork to figure out what you're bothered by.
I'll assume it's because I sounded somewhat annoyed with Tewi, on the whole, in asking why no one else seemed to think this was someone else's property? And in fairly bluntly asking her to stop shooting? I think, when you see someone you don't know shooting at people who are, essentially, your own subordinates while you're asking for a cease-fire, getting a bit annoyed with them continuing to so casually take potshots is pretty reasonable. The same with the issue of everyone else assuming that everything up there is theirs to take.
It never seemed to bother Tewi significantly, and I tried to make it as non-hostile as seemed reasonable. But I can't imagine Iku being totally ok with either of those things.
How do you think the situation might have been improved by acting differently? I think Tewi is relatively neutral in either case, and I'm not sure there would be anything more she'd be able to do, no matter how nice we were to her. I don't even think what I did counts as un-nice, for that matter, but I'd be curious to hear your thoughts of it. Or have I missed the mark entirely?
>Move towards the group of celestials she's approaching