Libra doesn't answer his phone or return his text messages. Why?

I know a boy five years older than me. 27. The same is true. Don't answer the phone, don't reply to text messages, don't reply to Fetion, don't reply to QQ.

But sometimes it is good for me.

I just asked a computer question and he didn't answer it? So I asked him why he didn't expect him to be silent. Don't say why. I don't understand. We are not lovers, but friends. We regard him as our brother. Nothing else. But why didn't he reply?

Is Libra always like this? . .