"Does Shao Rong stay with you?" Bingwen was dumbfounded by Weimin's question.
He didn't know how to answer that question. Before this episode, Sun Bingwen and Shao Rong treated each other as brother and sister hence there was nothing awkward with staying together.
Even if they were not brother and sister, Shao Rong was Father Sun's esteemed guest. Hence giving shelter to his father's guest is nothing out of the ordinary.
But now, Shao Rong said that they met through a blind date. Hence if he said that they were living in the same house, the meaning would be that they were living together instead of they were staying in the same place.
The difference between the both meanings is too vast that he does not dare to reply to Weimin's question.
Because he does not want Weimin or any other person to look at Shao Rong in a different light due to his words.