Ok lately I've been trying to remember a wattpad novel name .. I only read the synopsis so what i remember was that the FL name was Mia "perhaps?" .. and that she was tricked by a man into believing he's poor and so .. and she discovered the truth on their honeymoon where he kidnapped her to an island ..
I searched some key words and came up with "Twisted" by NaughtyBlonde on wattpad. I hope it's what you're looking for! https://www.wattpad.com/story/136817519-twisted