He strangled Xia Heru to death.

Xia Heru saw Chang Bingwen silhouette which is heading upstairs. She turned her attention towards her food which is in front of her and continued eating it. 

Xia Heru finished her food as she thought about something in her mind. 

She looked sinister as she ate her food while eating. No one knows what's going on in her mind. But they are probably not good thoughts. After all, those are running in Xia Heru's mind. Definitely, they will not be good thoughts. 

After finishing her food she went to the bedroom but she didn't see Chang Bingwen. She thought he might be still working. So she didn't care about it and slept.

But Xia Heru woke up in the middle of the night suddenly. She didn't see Chang Bingwen beside her. She found the other side of the bed is still empty as before when she came.

Seeing his absence, she took that as a chance she took her phone and sent a message to 'that' man.