1) Stay out of it. Never get caught up in any specific accusations and incidents. No matter what the other party says, don't respond specifically, keep your distance, so that you can see the whole picture. Being out of it is not the same as being irresponsible. To be responsible, we must see clearly, and the bystanders can see clearly. It has never changed since ancient times.

2) Describe each other. Describe each other's state calmly like an outsider. "So intense, what's the matter?" Will this further irritate each other? Yes, so what?

3) express confusion. No matter what the other person says, you are confused: you don't understand, you don't understand. People really don't understand when they are angry. This forces the other party to repeat, repeat over and over again, and if you repeat too much, you will lose your temper. Anyway, the other side pays more and you pay less, so we can afford it. Don't you think you don't understand? It's hard to accept any criticism without understanding, isn't it?

4) Describe your status. Your reaction is so fierce that my mood fluctuates with it. I'm angry. I can't help it. But I also wonder, since you are so reasonable, do you have to express it in this way? Do you want to vent your dissatisfaction or do you want me to do something?