A second chance.

Scenario:

In your previous life, you were married to Zane—the richest man in the city. The marriage only seemed perfect on cameras and billboards, but Zane is an abusive monster. Hitting you and beating you up into a pulp when you've only used the wrong tone, and whenever he begged for forgiveness that he'll never do it again—it'll all happen again after a week.

Your sister decided to marry Yoongi in that life, a closed off nerd that you knew barely back in high school. Marriage between them didn't end up well as Yoongi's business went bankrupt to the point where your sister was almost dying from hunger while you lived a 'life of luxury'. That of course made her jealous that got to the point where she took your life with a dagger through your chest, but that only gave you a second chance to make correct decisions as you were reborn.