What do you think happened?

Things were going well, started dating for about two months, had 4 dates, had a little argument but all was forgiven. One evening, had a great night and then it led to us getting busy. The next morning I get a text essentially saying, “I had a great time but I usually move slower, I don’t want to complicate things”.. I responded and then we went on from that as we usually do with texts. Within the coming days, texts start to slow down (person has a hectic schedule which is understandable, but things became different). So I send a text and ask if everything’s okay, they explain they have a lot going on. So I apologize if things moved too fast. Fast fwd to now, I let some time pass to give them space. Sent a text to check on them, got a response, but after I responded again, no response.

So I gave it a few days, nothing. So I ask upfront, what went wrong and got no response but they still continue to watch my social media posts & stories, every time I post.. I feel ghosted slightly and this has never happened? What do you guys think is wrong or happened?
What do you think happened?
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