Besides, she could use the easiest method to solve this!
That method was Li Qing!
With Li Qing's status in play, Duan Yi would not have the courage to act. Otherwise, the entire Duan family would capsize! Knowing Li Qing's belief in her, he would certainly be willing to stop Duan Yi's actions! Hence, even if Gu Ruoyun does not do anything, she could easily smooth this over!
As for when they leave the Evil Spirit Forest, that would be Dong Fang and Duan Yi's personal grudge! If Dong Fang does not have the fear of dragging the group down with him, he would not have submitted so easily!
Hence, there had been no need for Duan Yi to die at first!
Unfortunately, this fellow had insisted on digging his own grave. Out of everyone, he had chosen to offend this little demon! Also, based on how Lady Gu pampers this spiritual beast, she would never stop it from acting on its own! Hence, Duan Yi only has himself to blame!
"No!"