My crush didn't reply to a simple message?

I accidently gave a missed call to my crush, then I apologized to which he said its ok, no worries. Then in courtesy i said 'Thanks, Hope you're doing good' and got no reply. I found it very rude as i only greeted him courteously. Did he mean to show me that he doesn't care at all?

My crush didn't reply to a simple message?
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