Chen Ke certainly wouldn't think that Xu Jing had just died like that, as if in his time death didn't even exist for this woman.
On the contrary, she was using this method to traverse between two realities.
Xu Jing had left a message behind, not to look at the compound eyes of that monster, which could transmit a malicious meme through eye contact.
It was just like the great black pillar of 2006, one glance would turn a person into red ash. The monster, however, plunged a person immediately into a state afflicted with some severe disease.
From the state Xu Jing was just in, Chen Ke believed it must be some serious acute gastrointestinal or internal disease.
In addition to vomiting and the whites of her eyes turning bloodshot, possibly accompanied by a total weakness of the body, Xu Jing had neatly slit her own throat to return to her reality, to avoid further enduring the agony of the disease.