HE CANCELED OUR DATE AND didn't RESCHEDULE, WHAT DOES THAT MEAN?

Basically, the title says it all.. He canceled on me last minute, didn't reschedule and hasn't texted me yet even though I've seen him being online more than just 1 time.
24h have already passed.
He was the one who asked me out in the first place.
HE CANCELED OUR DATE AND didn't RESCHEDULE, WHAT DOES THAT MEAN?
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