Can you recommend some romance novels where the protagonist goes back in time to fix past mistakes or seek revenge?

For those who enjoy a second chance at life with a focus on revenge and rekindled love, "He's My Fiancée ! : I Went Back To The Past and You !" is a strong contender. This novel delves into the intricacies of a past life tragedy and the subsequent journey of the protagonist as they navigate their present with the wisdom of hindsight, aiming to correct the wrongs of their former existence and potentially find love again. The premise inherently offers a blend of romantic development and a compelling revenge plot, often exploring themes of growth and overcoming adversity.

Another novel that touches upon similar themes of overcoming past hardships and potentially finding a new path is "The Rebirth of the Malicious Empress of Military Lineage." While its primary focus is on a woman's transformation after a difficult past, the element of rebirth often implies a chance to alter destiny and perhaps right past wrongs. In this story, the protagonist's heart hardens, suggesting a journey that might involve exacting a form of retribution or at least navigating a treacherous world with newfound strength and resolve, which can be as satisfying as direct revenge for some readers. These novels offer intricate plots where past lives heavily influence present actions and relationships.