I think its "the Substitute Relationship" but if it's not, i've listed most of that tropes here:
•Manhwa
Limited Run
Waterside Night
Speak of the Devil
My Starry Sky
Kiss Me, Liar
My Bias Appeared?!
Heart Stain
Escape, Ray
Unscented Trajectory
Paper Flower
Define the Relationship
Still Like Me
Dream-Like Lie
Safe Partner
Chasing Mr. CEO
Gold Gray
Rebirth
Palace of Bardo
The Third Ending
Struggle
Love Me Doctor
Yours To Claim
In The Private Room
Rivalry
Royal Servant
Kiss the Bride
Hogu Hagyeongsu
Two Empires, The Slave of the Empire
Even if You Don't Love Me
Omega Bus Stop (3rd Story)
•Manhua:
Chen Shang
Yesterday Was Like Death
Be Watched By My Ex Again
Everlasting Love
See You Never
Fatal Scents
Black Lotus
Silent Lover
Apex Predator
The Substitute Relationship
Ex-Husband Wants To Marry Again
Continued Love
10 Years I Loved You The Most
Sissy
Social Temperature
Dominated By The Powerful Top
A Cup Full of Water
Days of Confrontation with Scum Attack
Fall In Mistaken Love
Sacrifice Myself To Get Your Love
Wolf's Grace (Not on this site)
After My Death, The Prince Is Unbearably Grieved
Being A Shadow Guard Is Tough
Emperor's Favor Not Needed
Drunk In Love
His Highness's Allure
Demon’s Pleas And Prince’s Tears
Miss You
You Own My All
Love Rival is Getting Prettier Everyday
Pavlov's Dog
After I Left You
Unreachable
Sin of Heart
2ha/ Dumb Husky and his White Cat Shizun
its the substitute relationship! thanks sm, i couldnt find it for the life of me
basically its this chinese one (its def chinese ik this for sure-) and its basically your average seme treats uke like trash but uke is inlove with seme so like is accepting then theres the final straw and uke leaves
so the uke goes to his hometown and stuff and meets this guy and so theyre driving and theres a massive car accident and uke lives but other guy doesnt and uke lives as that guy (not really, just under his name) and becomes a celebrity.
seme rlly regrets stuff but uke is gone but then sees uke as celebrity but uke doesnt remember him yada yada.