It could be that he's a big fan of yours and doesn't want to miss a thing. Or perhaps he was just bored and your stories caught his attention right away.
Maybe he's really interested in what you share and has the time to check them promptly.
There could be several reasons. Maybe he has nothing else to do at the moment and your stories are engaging. Another possibility is that he has a habit of quickly consuming content or he's been waiting for your updates.