An Assassins Escape

Im pretty much fucked.
I'm a lot of things, but now I can confidently say that I'm stupid as well.
But would I do it again? Yes, yes I would.
If it got me off these horrible Isles, I would do pretty much anything.
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Slow burn romance enemies to lovers. She arranges a marriage with herself so her spouse can get her to the mainland, but her plans go sideways and she has to be clever and resourceful.