Illaoi is the only romantic relationship possible for Ahri
Ahri has a bunch of issues because she likes to eat people and is a cannibal but at the same time does not want to eat people because she is a person. She is kind of like a psychopath.
Illaoi is all about chasing your desires regardless of what they are. She is also able to find the desire that people want and help them search for it.
Thus Illaoi would be able to help Ahri then Ahri would fall in love with Illaoi and then that is it. Wukong is literally a boosted animal so Ahri would not want to hang out with Monkey.
So yeah sorry to burst everyone's bubbles not really though because most of you are just shippers that ship stuff and boats.
