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To be honest, I think there genuinely may be a good reason for it.
His phone has been switched off since Wednesday, he hasn't logged into the site we met on since Wednesday, hasn't updated his facebook page or logged into his MySpace page, which he usually does every day. (I'm not some kind of internet stalker btw, he invited me to look at his pages before we met up!)
He has had some serious health issues lately, which he had to drop out of Uni for and move back home and I know he still gets ill from time to time, so that may explain it.
Still, if his phone is switched off it means I'm not the only one who hasn't heard from him!