Can anyone tell me the name of this manhwa where it's an omegaverse and the omega meets tw...

Can anyone tell me the name of this manhwa where it's an omegaverse and the omega meets two alphas in highschool ( i think he meets both of them in highschool, or maybe he only met one of them there and then the other later) and then gets into a relationship with one. Both these alphas are from rich families who happen to be rivals. The alpha the omega originally gets together with goes abroad to study so he can make a name for himself and then marry the omega, but before he comes back, the other alpha convinces the omega that the alpha who went abroad will leave him and that he was being stupid waiting for him. So the omega marries the alpha that stayed behind and when the other alpha who went abroad comes back, he's heartbroken. Then there's this accident where both alphas get hit by a car and the alpha that stayed behind dies while abroad alpha occupies stayed-behind alpha's body. So now he's the one who's married to the omega and he was also able to convince his older brother that he's his original self.
Please please if you know the name tell me!! Thankyou!