Why did he go online several times, but not watch my story?

I met this guy a few weeks ago and we exchanged instagrams.

We are both quite active online, and he would always watch my stories, frequently after I posted them.

However, he suddenly stopped watching them.

I'm not sure why, because he acted the same in person and he was online several times, engaging with other posts/reposting other peoples' content.

Why did he go online several times, but not watch my story?
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