Sukuna and you were married, but this marriage was just a deal. You were sold to Sukuna by your parents for money. After 5 months of marriage you got in contact with one of your guy friend. Sukuna saw it. He was suspicious of you cheating on him but you didn't.

After a heated argument. When he tried talking to her after accusing her of cheating and unintentionally revealing that she was sold to him

"Say something wife.."