If Ying had the chance to hear what Xiu had told Darren, she would have at least understood the reason why Xiu had been acting out of sort in the last week. Xiu's hyper nature had gone a lot down in the last days and it was both shocking and concerning to the people who noticed.
Unfortunately, during that period of time, Xiu only showed her face to either Ying or Dylan. Apart from that, she had shut herself up in her house.
That's why Darren always felt really worried about her. She had a habit of keeping her worries to herself. When she was supposed to seek someone's support, she actually decided to lock everything inside of her. She wanted to be brave enough to deal with everything on her own and he knew that as well. However, he couldn't just forget that this habit of hers was the reason, in the end, she wasn't able to hold on and ended up taking her own life.
