Its so good.
If you think about it a little bit more, the Elf only really knows how to express "love" through erotic things. She might be aware of how it generally works but it is expressed, through her own experience, via Erotic and lewd actions.
Ayano-san is more "grounded" in terms of the "usual logic" but is hampered by the fact that is frankly inexperienced and most likely is still hang up on actually liking/loving this Isekai'd elf woman. She is intellectually aware of Yuri, but most likely never envisioned herself being in such a situation.
An Elf with lots of practical knowledge but is hampered by it. A teen with little to no experience but is more broad theoretically on how one can show "love".
Its one to see if the Author/Manga-ka would explore it this way or just keep to a more lighthearted (but erotic) tone.
Thanks for the TL!