Maybe you were no longer interested in his life or the content of his stories.
Perhaps there was something in her stories that made you uncomfortable. It could be her attitude in the stories, or the topics she was constantly talking about that you didn't like.
He might notice that you're no longer engaged and feel a bit disappointed.
Perhaps there was something in one of your stories that made him/her uncomfortable. It could be a topic, an opinion or even just the way you presented it. So he/she decided to stop watching.
You can try to change the content of your stories. Make them more interesting, for example, by adding some new elements or perspectives.
You could start by making your stories more interesting. Add some humor, unique perspectives, or new elements. For example, if you usually post pictures, try adding short videos or captions with interesting stories behind the pictures.
You could try reaching out to them in a friendly way, like sending a simple text asking how they are. This shows that you care about them beyond just the stories.
Well, first of all, don't take it too personally. Maybe he's just going through something in his own life. You could try reaching out once in a friendly way to see if there's an issue. But if he doesn't respond, just move on. There are plenty of other people out there who would be interested in your stories.
If you still care about their opinion, you might consider reaching out privately in a very casual way. Just ask how they're doing and mention that you noticed they stopped watching your stories. But be prepared for any kind of response, positive or negative. However, this is a bit risky as it could reopen old wounds or create new drama.
She might notice that you're no longer viewing her stories and feel a bit disappointed or curious about why. But if you two aren't that close, it may not matter much to her.
Maybe he's just too busy right now and doesn't have the time.