Reborn with the World as My Betrothal Gift

He used her to ascend the throne, then cast her aside like trash. She stole her husband from her and even destroyed her family. He was jilted by her and lost his position as Crown Prince, yet came to save her soul. Reborn, she clung to the Crown Prince's leg. "I want to be your wife, bear your children, and grow old by your side." By chance, she entered the Library of Ten Thousand Books in a dream, where she could browse precious classics at will. Her husband was in trouble? No rush, let her take a nap first. Scum men and women? They were only fit to be the dirt beneath her feet. Someone wanted to harm her husband? They'd better ask her permission first! The stern, no-nonsense man turned tender as silk: "My Xi'er can have anything she wants." He offered the whole realm as her betrothal gift and promised her a lifetime together, with no one else between them.