Why can't the Thirteenth Master be with Ruoxi in the novel?

In the novel " Startling Step by Step," there was always a complicated emotional entanglement between the 13th master and Ruoxi. Although the two of them were once attracted to each other, Thirteenth Master could not let go of his family and responsibilities, and Roxi could not let go of her beliefs and freedom. As a general of the Ming army, Thirteenth Master had to be ready to fight for his family's honor on the battlefield. His feelings for Ruoxi had always been seen as a marriage between families rather than true love. In addition, there were some fundamental differences in values between the Thirteenth Master and Ruoxi. For example, Ruoxi advocated freedom and equality while the Thirteenth Master valued family and honor more. These differences made it difficult to maintain the relationship between the two of them. In the end, after Ruoxi chose to leave the 14th master, the 13th master also made a similar choice. He gave up his relationship with Ruoxi and focused on the family business. Although this did not mean that he had truly given up on his feelings for Roxi, it could be seen that in the face of complicated history and family interests, the feelings between the two could never be truly balanced and respected.