First of all, Dong Xuan and Tong Liya are good girlfriends, and she wouldn't use her friends like this. Dong Xuan and Tong Liya are good friends, which was reported in the news many years ago. At that time, Dong Xuan was not divorced and had no children. When she participated in the variety show, the program group also asked Tong Liya to talk with her, and even shared interesting stories in their daily life. However, both of them are very low-key, and there is not much marketing sisterhood except taking some photos.
When Dong Xuan's family had problems, some media broke the news that Tong Liya not only ran before and after, but also helped introduce resources to help Dong Xuan tide over this difficulty. When Dong Xuan is in trouble, he can help him. This should be a real good friend, so Tong Liya should have a different position in Dong Xuan's heart, and she won't take advantage of Tong Liya.
Second, even on purpose, Tong Liya wouldn't say anything. Friends help each other. No big deal. Let's put it another way. We can only say that Dong Xuan did it on purpose. What if she did it on purpose? Other artists also mentioned other stars when they participated in the program, but they just said an interesting thing. They didn't expose Tong Liya's living habits, let alone any privacy about Tong Liya, and even won't damage Tong Liya's reputation. What can't she accept?
Dong Xuan's participation in "Langya List 2" is very heavy, and it is not good for Tong Liya to get a positive hot search for no reason. You know, hot search for stars requires money, and you can help your girlfriends without money. What does she care? Have it both ways.
Finally: I still can't tell who is who, but I can tell by voice. It's really hard to tell just by looking at the photos. They really look so much alike, just like sisters.