They used to depend on each other, and they used to have disagreements.
He is Jueluo's brother, and she is his Jueluo.
"The funniest joke in the world is that Jueluo likes Inuyasha."
"The funniest joke in the world is that Jueluo loves InuYasha."
"The funniest joke in the world is Inuyasha's love for Gakuro."
"The joke that couldn't be any funnier in this world is Jueluo's brother, Aijueluo."
An absolute no-no.