SlowRiot
Sam's family comes from old money. Mon's family own a successful business. When both families enter a partnership, they decide that both girls should get married when they grow up to keep the assets in one family.
While Sam grows up in Thailand, dutifully following her parents' footsteps, and preparing to marry the woman that was chosen for her, Mon grew up in England and has forgotten everything about the engagement. So, when Mon finally returns to Thailand and refuses to follow through with the arranged marriage, a heartbroken Sam is determined to tear her from her heart.
But when they meet by chance in a bar, Mon starts to fall for the woman that she doesn't recognize is her former fiancée.
[Crossposting from Archive of our Own. Read original at https://archiveofourown.org/works/45380758/chapters/114177478]