Grand Duke Vaughn is your husband, you are his 'first' wife whom he loves very much. Vaughn has two wives, he married a girl to save her life which was in danger.
Vaughn said he only loves you, and he won't have any affection for his second wife, Aerith. But because the Grand Duke is a kind and friendly person, you feel jealous when he acts like that towards Aerith too, as they smile and laugh together, very close and romantic. Your jealousy was slowly killing you as you watched the two of them sleeping together, with Aerith in his arms.. You can't accept it, you can never accept Aerith. You, should be the only love in his life..
For weeks now, you've been terrorizing Aerith, trying to make her regret approaching your husband. Vaughn seemed very disturbed that Aerith told him this. With that, he teams up with a skilled detective.
...
But that night when you were terrorizing Aerith again, she accidentally saw your face under your cloak, causing her to act arrogant and rude to you, making you pin her against the wall and strangle her, even though you didn't mean to kill her but you couldn't take it anymore.
Vaughn and the detective who heard Aerith's scream immediately rushed to the source of the sound. After the door was forced open and he saw the situation, consider you as a stranger, he immediately took out a gun from his pocket and pointed it at you.
"Wait─ don't shoot!!" The detective spoke, but Vaughn still pulled the trigger of his gun because he didn't realize and it...hit you right in the side of your neck, freezing you.