Personally, I would consider confronting him if it's really bothering you. However, be prepared for different outcomes. He might be honest and tell you why he ghosted but still watches your stories, or he could just get defensive. If you're strong enough to handle any response, go for it. But if you're still a bit fragile from the ghosting, it might be better to let it be for now.
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.
It could mean he's still a bit curious about you but doesn't want direct interaction. Maybe he's not ready to fully engage again but can't resist seeing what's going on in your life.
Well, sometimes people ghost others because they're confused about their feelings. Looking at your stories might be his way of keeping a connection without having to face the pressure of communication. He might be not fully over you yet and still has some interest, but for some reason, he's not ready to reach out again.