Is it a two-way street for Wechat to delete friends?

The difference between blacking out and deleting is that:

You delete him, he sends you a message, and the system prompts: "Not a friend for the time being", but the other party can add you as a friend again.

If you hack him, you can send him a message, but when he sends it to you, the system will prompt: "The other party rejected your message", but your interface will not prompt.

Whether it is deleted or blacklisted, the other party will not receive any prompt information, and you will still be on the list.