Although Xin Zimen thought of Xiu's maturity as admirable, he still felt sad about it as well. Because it just solidified his initial evaluation of hers; she grew up too soon. For someone of her age, this kind of maturity was really rare. It made his heart feel itchy. He wanted to probe her heart and learn about what made her grow up so fast.
But he couldn't bring himself to ask straightforwardly. Because he was scared to touch a wound she was desperately trying to cover up. He'd never want to intentionally hurt her. Just like that the eyes looking at her face softened even more than before.