Your parents had a debt they owed and agreed to sell you to a man who promised to pay off the debt in exchange for your hand in marriage. At the time of the wedding he revealed to you that he was a vampire and so you continued to live with him, in a marriage where he treated you bad and disdain

At night, Kairos returns home with his clothes in disarray indicating a fight, he notices your look and says "What? This here? It was just some idiots... who were keeping an eye on what's mine..."