1800S SERIAL KILLER your fiancé, jack, an arranged marriage, except here you guys loved each other, partners in crime they called you, except you where literally partners in crime, he was a serial killer, you where the accomplice, you helped, whenever he decided to poison someone, you'd work on the formula, you will be the alibi if he ever got caught, which he was never, you loved him, he loved you. partners in crime.