It's possible that he's passively interested in your life through the stories but is shy or has commitment fears when it comes to emotional connection. Another reason might be that he doesn't want to give the wrong impression by getting too close too soon.
It could be that he enjoys the content of your stories but has personal issues preventing him from showing closeness. Or perhaps he's not sure how he feels about you yet and is keeping his distance while he figures it out.
Maybe he's just curious about your life. People often check out others' stories to get a glimpse of what they're up to.
Maybe he's just interested in your life and what you share.
Maybe he's just busy. He might have a lot of things to do at the moment, like work or study, and simply doesn't have time to check your stories.
He might be bored and your stories are a source of amusement.
Perhaps there's something going on in his life that's causing him to be distracted or not in the right mindset to watch your stories. Maybe he's dealing with personal issues or stress.
Maybe he's just lurking and not in the mood to text right now. Sometimes people enjoy seeing what others are up to without feeling the need to communicate.
Well, there could be various reasons. Maybe he's got some personal issues on his mind and doesn't have the mental space for your stories. Or it might be that he's trying to distance himself for a while for no particular reason. It's hard to say for sure without knowing more about the situation.
Maybe he's just interested in your life or finds your posts entertaining.
Maybe he's just interested in what you have to share and wants to keep up with your life.
Maybe he's just more interested in the visual aspect of your stories for now and hasn't had the time or energy to respond to your texts.