Romance/Memory Loss. A woman wakes up with amnesia/memory loss from an accident, and a guy claiming to be her husband took her to his or "their" private island to help her recover her memories.

[IslandSweetheart]

I read this book around 2010 to 2013, can't remember when it was published. It's about a woman who wakes up with amnesia/memory loss from an accident, she's in the hospital room and was surrounded by a guy and his family (or her family idk). The guy claims that he is her husband and the family backs it up. **WARNING FOR SPOILER** He took her to a private island and a big house and then shows her their pictures together at their wedding. Fast forward, the woman remembers that they were already divorced so she tried to escape from their house and get off the island but the people on the coast are not helping her as they know her wealthy ex-husband. The story goes on as the guy tries to win back the woman while keeping her lock up in the house and in the island.