At the end, I told him to leave me his number (Should I have given him mine?) and he did so without hesitation. He even made sure I could read all the numbers correctly by saying "Those are 9s not 4s". I told him, "great, I'll text you" and he said "Sweet thanks! I'll see you later" and rubbed my shoulder.
When I get home a few hours later I text him saying "Hey this is *my name*". 24 hours later and no reply. There's no way he'd be so busy that he didn't glance at his phone for a whole day. So what happened?