"If there was no need, Lan Li would not be a chatterbox, Lin Deng and Gu En both would not know." This is something that He Zhilan knew. However, when it came to her comrade's wife, Lan Li was as nosy as a housewife.
Once He Zhilan said this, the three understood. He Zhilan's intent was not to let Lin Deng know. Given Lin Deng's and Gu En's relationship, if Lin Deng found out, Gu En would definitely know. Gu En's character was a mystery. All in all, it's better to have less trouble than more, especially as He Zhilan now had a quarrel with Gu En and hadn't made up yet.
The four of them were all the same age. During this time, He Zhilan was in a very busy phase. For her three best friends, they lost the opportunity to chat before sleeping, so today they wanted to have a good talk with He Zhilan.