The author is writing for their own amusement. Don't read if that's not your thing. (I don't dislike the original pairing, this is just a random idea.) Even I don't know if this counts as fanfiction.
Lu Yao x Zou Jing (first-love pairing)
Lu Yao: She's my first love, the best Zou Jing in the whole world.
Zou Jing: Lu Yao, I know you too well. I know every good and bad thing about you. And because I know you so well, I know we have no future.
Theme: Cherish every encounter