Qwdrama

It's the same pronunciation as the common phrase in Chinese "地心引力" (Earth gravity)

I saw some leak. XLH is still in Xiyun. Only that Xiyun is more mature and knows much more. Just like DFQC cannot give up his duty to protect Cangyanhai, she cannot give up her duty to guard the 3 realms. She need the pretense to execute her plan. There is a clue she is not that cold. After DFQC lied about his identity (being from Shuiyuntian), she still let him stay. This is not how a goddess like her would normally do.

Remember, as a child, xiyun saw what happened to her family.

There's reason for xiyun's coldness. There will be more surprises. Everything will be tied up nicely.