In the era of smartphones, we send and receive messages every day  Electronic information communication among people has become a unique way of communication in today's times  In the face of an important person or relationship, many people tend to send a message and expect it to be answered in seconds
If it is not answered in seconds, they will develop a sense of doubt or rejection, and thus fall into deep annoyance and anxiety
Some chat apps give feedback on the sender's phone about whether the recipient has read the message