"Divorced, I Can Only Go Back to Save the World". This is a modern romance novel about a wealthy family. The plot is that the female protagonist discovers that her husband has lost love for her after marriage and eventually divorces. It's similar to what you described, but the male protagonist in the book has a heart of repentance, so it might be slightly different from your situation. However, this book was still worth reading. It was a good revelation for the female protagonist on how to get out of the shadow of divorce and find herself again. I hope you like this fairy's recommendation. Muah ~😗