Ugh wish I could remember the title of this book! Please help!

Hi,
I need some help finding a book a read many years ago. The plot involves a male lead that had a wife with green eyes and black hair so all his love interests had those features. He meets a woman with blonde hair and falls for her. He had a family member who wanted his riches who attempted to assasinate him. The blonde woman protected him. That’s all I remember any help would be appreciated. Thank you all!

You are more likely to get the help you need if you follow the Posting Guidelines. See https://www.librarything.com/topic/329521