It was Lu Weixi's best friend Xue Feifei, and Huang Qichu who was to marry Yu Sihua on the first day of next month.
Clearly, Xue Feifei and Huang Qichu must have met by chance, a carefully orchestrated meeting wouldn't take place in the lobby, but in a private room instead. Also, Xue Feifei hadn't made any attempt to disguise herself, no hat, glasses, or mask.
The Siyi Company was not far from the Yuechun Apartments where Xue Feifei lived, so probably they ran into each other.
Qin Zhiyou saw them meet, but pretended not to have seen them. He would only pay extra attention to Yu Sixing from the Yu family, as for Huang Qichu, he was just Yu Sihua's fiance. Their complications were none of his business, anyway, Yu Sihua wasn't so virtuous either, she got along best with Qin Zhimei. She joined hands with Qin Zhimei to trouble his family, especially Xixi. It would serve her right to end up with a jerk, she would get what she deserved after they got married!