Please recommend a romance novel that mainly tells the story of a male protagonist hurting the female protagonist due to hatred.

"Seven Nights of Love: The First Princess Consort" is a book that fits your needs. The male protagonist forgets the female protagonist because of a conspiracy. He pre-marries the princess as his concubine and sleeps with the princess every night. He hurts her deeply and even personally hurts her. The female protagonist left the Crown Prince's residence in grief and began her long journey to the ends of the world. I hope you like this fairy's recommendation. Muah ~😗