Why not mention the background information of the love chat app?

What you want to ask is why you can't see the information sent by people who like to chat.

That's because the mobile phone didn't exist at that time, so I couldn't see the information. Maybe the phone is broken, so I can't see the information. It may also be that I don't have my mobile phone at home, so I can't see the information and definitely won't return it. These are all possible.

Also have a plenty of mute, didn't hear the sound.