Thanks for the advice guys, but I honestly think that this guy doesn't want to sell it. He just doesn't want to admit it. I will give him a couple of days to make a counter offer.
Or he does want to sell it but just needs a nudge. My suggestion if you don't hear from him in a few days, go see him again and be as persuasive as possible without pleading with him, and let him know it's now or never. And then shut up and see what he says. Sometimes people need a 'defining moment' in order to make a decision.