Gu Xiaonuan is far from being the same person she used to be; now, she has many things to consider and many issues to understand.
If Li Lu doesn't leave, then Gu Xiaonuan can't find her own way to interact with Si Yuchen.
Although Si Yuchen is no longer the person he used to be, he still has his own Immortal Law and approach.
Moreover, Si Yuchen shouldn't act that way, especially when he thinks that things might change even more.
Si Yuchen's feelings for Gu Xiaonuan have always been the same, never changing, which is why their relationship hasn't evolved much.
Why does Gu Xiaonuan punish herself this way?
Besides, since she's planning to be with Pu Shaojing, she's not intending to use this method to prove that something is lacking between her and Si Yuchen.
While she hasn't figured everything out, Li Lu has already thought things through.
This time, Li Lu sees things more clearly and knows what she should do to simplify matters.
