Song Meiling felt sorry for Zhang Xueliang, because in a war of the Republic of China, Song Meiling asked Zhang Xueliang to release Chiang Kai-shek and promised that he would not put Zhang Xueliang in prison when Chiang Kai-shek came back. Therefore, Zhang Xueliang agreed to this request for the sake of Song Meiling. However, after Chiang Kai-shek returned to Nanjing, he not only turned against others, but ordered Zhang Xueliang to be placed under house arrest. Since then, Zhang Xueliang's life has been very difficult, and he spent the rest of his life under house arrest and did not see his grandson outside. So Song Meiling is very sorry about this, because Zhang Xueliang's miserable life is caused by her.
Song Meiling's second regret is that he didn't leave a son and a half for Chiang Kai-shek. Chiang Kai-shek and Song Meiling belong to a political marriage in the eyes of many people. In fact, Song Meiling and Chiang Kai-shek have very deep feelings, so Song Meiling will think that it is a great pity that he didn't have children for Chiang Kai-shek before his death. Although Chiang Kai-shek had children, he was not born in Song Meiling, probably because he loved him, so Song Meiling thought it was a very regrettable thing not to have children for Chiang Kai-shek.
In a word, Song Meiling is an extraordinary woman. Such an excellent woman is very successful in her career, but she still has some regrets. I think there are very few people who really have no regrets in everyone's life.