Twice by Mitch Albom

Twice: A Novel by Mitch Albom is a magical realism story about a man named Alfie Logan who discovers he can relive any moment in his life by saying "Twice," but with a major catch: he can only do it once per event, and the other person involved has no memory of the original timeline. The novel follows Alfie as he uses this gift to correct mistakes and pursue love, particularly with Gianna, but learns that true love cannot be re-do'ed, leading to a poignant exploration of choice, regret, and the nature of love, framed by a later-life interrogation where he must explain his extraordinary life.