So, I'm an otaku obsessed with white guys, can anyone please recommend me a drama where the FL already has a White boyfriend somewhere oversea and when she goes back to Asia for one reason or another, she's forced to marry an Asian fiancé, who is the SML or the ML and is mighty jealous of her white boyfriend overseas?

Try checking kdrama Creating Destiny. Some bits of the drama is hazy but i do remember about the girl coming back to korea due to some family marriage contract promise. And he mentions wanting to break off the engagement due to a boyfriend. And the