What should you do if your best friend suddenly says he wants to break off the relationship because of personality differences?

In the first case, first, I slapped him. I said: Have you thought about it clearly? He said: Press. I said: Don’t regret it, think about it clearly and send me a text message. Turn around and leave. Second In this situation, I slapped him and said: Are you hitting me? I said: Do you want to break up the relationship? He said: Yes. I said: Go away. He slapped me back. The last two of them had a fight, 1, I lost. , said, you go, don't let me see you again. 2, I won, said, you go, I hope we can still be good friends. 3, neither lost nor won, looked at him with firm eyes, and then I hugged him and laughed. In the third case, I said: Do you want to break up the relationship? Why? He said: Incompatibility. I said: Are you cheating on a 3-year-old child? Tell me your reasons. He said: .... I said : No, okay. Then my last request. He asked: What? I said: Come with me. He said: No. I said euphemistically: In view of our friendship for so many years, this is my last request. Even if you don’t agree, he will definitely agree. Differences---1. Take him to a place where we used to play together and talk about some past things. Differences---2. Take him to drink and get drunk and relieve all the worries. Okay, let me analyze. That’s the end of your question. This is how I deal with it. My imaginary partner is a primary school classmate of mine with whom I have a good relationship. He’s the same sex.