Qiuyue, when she left the Hua Family, was no longer called Qiuyue, she reverted to her original name, Xia Yuan.
Although the Prince's residence was gone, and Xia Yuan was no longer the Little Princess of that residence, this was, in fact, a good thing for her. The men of the Hua Family would not marry daughters of high status, nor would its daughters marry sons of such families, except for the exception of Hua Yan. Now that Xia Yuan was a daughter of an ordinary family, Hua Zhuo would have an easier time marrying her, without the need for further complications.
Now, having declared his intent and given his orders, Xia Yuan was his fiancée, and it was natural for her to change the way she addressed him.
Hua Yan had her fill of joy and then noticed Xia Yuan's fatigued face, her complexion pale, obviously from the exhausting journey here. She asked, "Didn't you rest on the way?"