C89 Tiger's Eye
Just now, the distance between her and Murong Yu wasn't that far. If he were to ride his horse and catch up, he should be able to catch up very quickly. After being gone for so long, even though she was entering the palace, couldn't he catch up to her and say a few words?
Also, he was also a prince, so even if he wanted to follow her into the palace, he should be able to