I Don’t Want the Obsession of a Twisted Archduke

I reincarnated as the wife of the cursed archduke in my own twisted novel.
As the author, I have a responsibility to fix this novel.
I have lifted the curse, which is the main problem of this story.
I thought my job was done. But when I was trying to go back, the archduke asked me, “Did you really think I wouldn’t know that you’re planning on returning to your fiance?”
‘My fiance?’
What I’m gonna do? He completely misunderstood the situation!
All I want is for him to please let me go home!