How could Jiang Qizheng and He Shuijin let her go?

Even if it was not for Jiang Yashuang's sake, now that they had invited her, how could they let her go without climbing Jinxiu Slope? Just now Jiang Qizheng repressed the two cousins with her authority as the princess mainly because she was afraid that they might ruin her brother's marriage, but she really hated them for not respecting her!

The two tried every means to beg her to stay but Qiu Yelan insisted on ...