A girl sent a message to a boy in the middle of the night and asked her what was wrong. She didn't say anything. What does that mean?

Rejection never means that you can't be friends ~ Maybe she regards you as a friend ~ Maybe she met something unhappy that day and wanted to talk to someone ~ Or she was bored and wanted to talk to someone ~ So she sent you a message ~ Actually, it's a good signal ~ At least you still have a place in her heart ~ But your answer is too straightforward ~ It seems that she can't talk to you if nothing happens ~ So she can only say nothing ~ or "No ~ How are you recently" and so on.