On the first night of being isolated, Feng Qing joked about Dai Zihan acting cute to Wen Zeyu. That night, Dai Zihan was overly anxious, so she actually called Wen Zeyu.
But the call didn't go through...
When the first call didn't connect, Dai Zihan thought he might be at the tomb, busy, not thinking too much into it.
But with the second, third, and subsequent calls, until the night before her isolation period ended, she kept trying to reach Wen Zeyu. Yet, he still didn't answer.
Missing one call could be because he was busy, but with so many calls unanswered, how could Dai Zihan deceive herself?
Even if Wen Zeyu was in a remote area, he should've heard the news. Moreover, Yu Zhou City isn't isolated from the world. Yet he didn't even call to show concern, and he didn't pick up when she called...
To be able to ignore her to this extent shows his lack of care...