Only at this very moment does she feel like she's marrying for love. Love might be blinding or life-altering to some, but for her, it's about striving to stand with him, to face all the storms to come. Perhaps she cannot be the wise and virtuous wife like Fang Rushuang, supporting him in every aspect of family and career, but she refuses to fall behind.
Many young girls are misled by romance dramas these days, buying into the idea that "men conquer the world, women conquer men." Don't be naive. A man who conquers the world will never favor a lady confined to her boudoir. What he desires is a woman who can conquer the world with him. Or at least, the two should start off on an equal footing, in sync with each other's thoughts.