Good writing.
I admit aromanticism frustrates me (like the would be “suitors” no doubt) conceptually since I’m the exact opposite end to that, but I would be foolish not to realize how well realized this works as a lens into that kind of person/character.
Although as far as suitors go Sakuya and Kogasa feel a bit self-indulgent as far as those who have Reimu on their mind, although perhaps many fanworks tend to be! That’s not a dig I just think it’s amusing.