Whether Ling Han and Shui Yanyu were willing or otherwise, Bu Zhengyun was obviously determined to go with them.
In his words, as the host, he naturally had the duty to accompany his guests and introduce the surroundings to them.
He accompanied Ling Han and Shui Yanyu. Wherever they walked to, he would be close behind. He could be considered very cordial, but could also be considered to be monitoring them closely.
Initially, Ling Han had been planning to go and look around the various houses in the village, but the moment he left the main road, Bu Zhengyun would speak up to stop him from progressing further. He would stop them from going over by providing the excuse that the people here did not like being disturbed, and even forbade the couple from talking with the passersby they saw on the streets.
His attempt to conceal things only made it more conspicuous, and caused Ling Han to be even more suspicious.