Internally? Certainly, since people have emotional reactions to everything; goes along with being sophont.
But consider these:
First, if you ask an honest question, you get an honest answer. This is a culture of intellectual integrity.
If you want to know how a dress makes you look, that’s what you ask. If you ask it in the above-mentioned form, it’s either because (a) you already suspect the answer is yes and are looking for external confirmation; in which case you’re not going to be upset at being right;
Or (b), you’re a human, and you’re setting up some sort of twisted loyalty/love/willingness-to-lie-to-me test. I say “you’re a human”, because if they wanted to get a status check on the former, an eldrae would ask you outright, and if someone wants the latter, they’re insane by local standards. You do not ask people to fake your reality for you; see culture of intellectual integrity, above.
Second, Eldraeic is a language predisposed towards mathematician’s answers. A native speaker will parse “Does this dress make me look fat?” as a question about the dress, and will correctly answer no for both the slim-looking slim person and the fat-looking fat one, and the response will only be yes for the fat-looking slim person; and most importantly, the answer will be parsed likewise.
Interpreting it as some sort of value judgment on the person is not only not even wrong, but also plain ungrammatical.
Third, our protagonist here is a grown-ass woman in a culture in which adults are expected, nay, required to comport themselves as such.
If you’re in the habit of throwing a tantrum every time you get an answer you don’t like or reality otherwise fails to fit your expectations, it is exceedingly unlikely that anyone would have put up with your labile bullshit for long enough to get into any kind of relationship in the first place.
And as a final note, this question is itself rendered somewhat moot in a culture in which one’s weight is always a matter of choice, and thus anyone who is fat is such because they actively want to be, and as such the modern-Western-human cultural assumptions that freight the question here are nonsensical on their face there in the first place.
