Call my girlfriend at night, and she says she is reading a novel, which is good. I texted if I had anything to do, and then I hung up. I was a little disappointed. What should I do?

This question should be very simple, right Maybe you think too much. She is reading a novel. I see excitement, so I'm sure I don't have time to talk to you, which is nothing strange. She regards you as her closest relative, so she doesn't need to be polite to you like others. You can talk to her after she finishes reading.