I treat you as my own brother and you treat me as my cousin. What do you mean?

Hello, I regard you as my brother. What do you mean by treating me like a cousin?

I help you as a relative, but you treat me as an outsider, describing that the other person thinks he treats you better than you treat him. The subject can recall whether anything has upset your friend recently.

After all, the person who can say such a thing must be someone who cares about you very much and a friend worthy of communication. If something really makes your friend sad, tell him clearly. After all, there is no feud between brothers overnight.