No communication after setting up a date—is that normal?

He’s over 20 years older than me, and people keep telling me that guys from his generation just communicate differently. But still, I can’t help thinking he might’ve lost interest. He acted so crazy into me when I was with him and the first week of texting. And now we haven't talked in 6 days I'm going insane

No communication after setting up a date—is that normal?
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