Letters from the Vieux Carré by Haden Hudson
My rating: 4 of 5 stars
Anna Bailey has lost her fiance in a violent shooting. She is devastated and confused when she leaves the funeral to walk alone in the French Quarter of New Orleans. While viewing the place that her fiance, Joseph, had once described to her, she comes across a mysterious shop owner who has a message for Anna.
Later that evening, Anna goes back to where her mother and she are staying. She is hoping for some maternal comfort, but instead, Anna is thrown back in time to the nineteenth century.
She lands in the bed of a drunken Gabriel.
Gabriel Volcain, looks exactly like Joseph, Anna’s dead fiance, complete with the most amazing blue eyes. And, when Gabriel’s father bursts into the room, the stage is set for a quick marriage.
Anna begins to write letters to her mother in the future to stop herself from going insane. Her incredible situation of going back in time cannot be explained to anyone.
Join Anna and Gabriel in the novel “Letters from the Vieux Carré” by Haden Hudson. The story will keep you reading from beginning to end with the passionate and mysterious relationship between Anna and Gabriel.
https://grandmothermusings.com/2012/04/05/a-knight-in-shining-armor/
Grandmother Musings 
Sounds intriguing!
It is good.