He just didn't know who the person that was supposed to take care of him actually was.
Ye Jiu guessed that there was a high chance it was the Prince, after all, he had ordered someone to secretly escort him back.
As for Young Master Sikong...
He didn't know when he came back, let alone have someone take care of him. Perhaps, when he found out that he hadn't waited for him and had left alone, he would have wanted to kill her to relieve his hatred, right?
After all, such a person, with not a very good temper and used to risking his life on the edge of a knife, yet never been contradicted because of his noble identity—how could he tolerate a mere farm girl disobeying him!
However, Ye Jiu was wrong this time.
Ironically, the one who was worried enough to arrange someone to take care of him was none other than Sikong Mo, the War King himself, who had left a brutal and bloodthirsty impression in her heart!