Got ghosted in the middle of a very interesting conversation?

A woman and I started a very interesting philosophical conversation about time and causality. Over several hours we were responding to eachother back and forth with paragraphs of text. By all accounts it was a very interesting conversation.

Out of nowhere she stopped responding, so I waited about 8 hours before sending another message, asking if I had said something that caused her to not respond. She responded later by stating that life got busy, and she would message me when things calmed down.

I noticed that she was online most every time I got online over the next few days, but I didn't send anything. After four days or so I noticed she was online I sent another message saying that i hope things had settled down for her, and that I enjoyed our previous conversation. Since then she hasn't responded, but read the message. she's subsequently been online nearly every time I checked who was online.

I understand she had no interest in speaking with me, and dont wish to send her any more messages. I'm just curious as to why she would suddenly decide mid conversation that she seemed to be very actively interested in (recommending videos to me, responding very quickly, asking me my thoughts on something, etc.), to completely stop responding. Then to evidently be disingenuous about messaging me when things settled down for her.
Got ghosted in the middle of a very interesting conversation?
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