Can't remember the title

[Sally]

I read a book a while back about identical twin sisters. One was married to a very controlling man who dictated her every move. She met secretly with her sister and was in an accident. The wrong sister was told this man was her husband (she woke with amnesia). Subsequently they fell in love, life was good. Then he found out she was Not his wife and turned her over to the police for fraud. That is where the book ended. I know there was suppose to be a sequel but I have not seen anything about it and I can't remember the title of the book or the name of the author. Can anyone help me with this?