At that time, Xu Zhimo had divorced Zhang Youyi and devoted himself to Lin. However, after returning from Cambridge University in England, Lin was found engaged to Liang Sicheng, the son of Liang Qichao. The family objected to his divorce from Zhang Youyi, so they wrote this letter to Liang Qichao [Xu is a disciple of Liang, so their relationship is very complicated].