Apparently the translators fixed it. I’d recommend updating the chapter, if possible.
Well, since I don’t know if it’ll be edited, I’ll at least explain the important part. The first words she uses are: date, inquire, senpai, pain. Which is why Shirogane notes her interesting word choice. The "Y" that she looks at that makes her hesitate would’ve actually made the final word "Miko". It would basically be her admitting that she’s in pain that Ishigami went on a date with that other girl. So she didn’t want to use it. After that it’s jokes that are some inappropriate and some jabs at her. But the most important part is her word choice showing her jealously and her crush. She didn’t win because winning would essentially be admitting, to herself at least (and maybe Kaguya and Shirogane), that she’s insecure and in love.
How is it that Fujiwara is the only one who realizes Iino is in love with Ishigami?
It’s a shame both the jokes and the meaningfulness of some of the stuff in this chapter was lost in translation.