This place is so far from Kyoto, and more importantly, Shen Jiadan's family never sought out cousin Song Yonghui, so, cousin Song Yonghui wouldn't have been distressed by her family or anything like that.
In Su Xiaowan's view, Shen Jiadan was panicking out of concern, which, hehe, within a romantic relationship, resulted from an excessive yearning that turned into a yearning sickness; not seeing him even for a brief moment caused unease.
Lovers are always like this, fretful and anxious. Shen Jiadan is an utterly normal girl, so it's understandable; it was just an excuse for her to trek all the way here. Su Xiaowan got it but didn't call her out on it.
So she smiled and said, "Don't worry, I already promised you I'd keep an eye on him for you. Why are you still fretting so much, even coming all this way? You really come up with ideas."