She later realized that he was just a safe space for her, but in truth, they did not fit together. He wished for a family, a wife who would focus on children, cooking, and cleaning, and that was just not Hermione. She had ambitions, and she wanted the man next to her to be her equal, not a child for her to mother, which both Ron and Harry were. She would always take care of them, but she needed someone to take care of her.