What does it mean when my wife calls her husband "brother"?

Hello, if a wife calls her husband brother, it means that the two of them have a good relationship. And your wife may have a more cheerful personality. It feels very cordial to call him brother. The couple is not only a couple, but also like brothers, with a very close relationship.

It doesn’t make sense. Many women in the Northeast will call their male friends brothers. Even if they call their female friends, they will become brothers. Just like male friends calling their friends “buddy” means the same thing. It doesn't necessarily have a special meaning, most of it is just a habit, or a woman's personality is a bit like a man's.