He's not interested if he ignores your stories and shares

Stories and shared content are low-friction. They don't require a full message back. A quick like, a laugh react, or 'haha' takes five seconds. If he never does that, it means he's not checking your stories at all, or he is and he's choosing not to engage. Either way, he's not thinking about you enough to do the smallest thing.

Slow texters still show up when it matters. They might take hours to reply to a long message, but they'll react to a photo you post or laugh at something you share. The pattern here is different. You're getting nothing, consistently, on the things you're putting out there.

Stop waiting for him to respond to your stories. Instead, send him something directly and see if he engages with that. A real question. A link he'd care about. Something that requires him to actually interact with you, not just scroll past. How he responds, or doesn't, to a direct message tells you everything.

If he replies but never touches your stories, he's compartmentalizing you. He'll respond when you put effort in, but he's not thinking about you on his own time. That's not someone building toward more with you. That's someone passing the time.

Give it two weeks of normal texting and sharing. If the pattern stays the same, stories ignored, slow or surface-level replies to direct messages, stop initiating for a full week and see if he reaches out. He won't. That's your answer.

After that week, you can text him once more if you want closure, but don't ask why he's distant or bring up the stories. Just text something normal. If he's still low-effort, you have your confirmation. Move on. Spending longer than this trying to decode mixed signals is time you're not spending on people who actually show up.