How Could you Repay the Kindness I Raised You with Obsession?

I became the evil witch from a fairy tale. Hated by everyone, I lived a lonely life—until one day, two hungry siblings showed up and started eating my gingerbread house. I took them in and raised them, that's all... “Witch Hazel, you are sentenced to death for kidnapping!” Wait—kidnapping the Duke’s younger siblings!? “If you execute Hazel, I’ll starve forever!” “Waaaah! I won’t go without Hazel!” Thanks to the kids, I somehow ended up as the nanny of the powerful Duke’s household. Which would’ve been fine… if the employer wasn’t him. “A Duke doesn’t marry a witch. Or a nanny, for that matter.” Excuse me? I never wanted to marry you in the first place. I’m just here to raise the kids a...