A female friend who is close to me said that I am too confident and need to change. Why?

There is nothing wrong with being confident, but if you exceed it, you are being conceited.

In this case, maybe you don’t feel it yourself.

But that’s how it feels or how it’s spoken.

It makes people think you are conceited, so I want you to change.

So, please change it.

Or just ask your girlfriend directly, or just give an example.