Dating life: I am so confused with the mixed signal I am getting from a boy that I recently met?

We had a great time together, got intimate as well and after that he always used to call me everyday and showed concern and care for me. But he’s suddenly changed after the next time I visited him, he hasn’t call and texted me since one week, so I tried calling him but he seems so uninterested to talk so I stopped calling. But he’s always watching my stories on all my social media platforms. I don’t understand what I did wrong that he ghosted me?
Dating life: I am so confused with the mixed signal I am getting from a boy that I recently met?
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