If Jing Xin really was part of the Nangong family, would she still fear not having a place to deliver her child or a place to live? That's a joke. As for Fang Xiu, she had no idea about these things, hence, her worry. Both were on different thought planes and had their own concerns.
Ye Xuan observed their conversation from the side, it's only now that he realized how different Fang Xiu was. He'd always thought Fang Xiu was just reserved, he never knew that she had difficulty speaking.
He wanted to ask Chu Molin what was the situation and who Jing Xin was exactly, and why his wife was staying at his big brother's house without his knowledge.
But seeing Chu Molin shake his head at him, he swallowed his words. It was indeed inappropriate to ask such questions right now. Oh well, he'd save it for another time.
Once Ye Xuan realized this, he ignored their conversation. It wasn't something he was supposed to hear, he should just focus on his meal.