My Favorite Character Wants a Divorce

When I realized I had transmigrated as the woman destined to marry my favorite character, Duke Euclid Ludion, I was over the moon. Only cloud on the horizon: I'm a villainess, and based on the storyline, we're headed straight for a divorce. But I won't let that happen! Time to undo all of my character's evil deeds, clear my reputation, use my generous dowry to save Euclid's house from ruin, and win over his beloved wards. Surely, this will be enough to guarantee our happily-ever-after... right?