A girl called me stupid during the day. What do you mean? I am a man.

This girl should be teasing you, because she thinks you are quite interesting, because silly white sweet is usually called a girl. Then if he calls you that, it's also a joke, and because he has a good relationship with you, he has given you a specific nickname.

Silly white sweet is an online buzzword, which mainly describes girls as silly, simple and honest, with white skin, sweet appearance and sweet speech, so it is also a compliment to describe girls as silly white sweet! Not a compliment.

If you are a boy, you can only be called a fool.

It means that this girl should still have a crush on you. You think you have a good personality, that should be teasing you.