I hate hands like this. They show no initiative, so you have no read on them. It is very suspicious that they stick around so long, and your semi-bluffs were fine until the river was a blank. Unless he picked up a [img]/images/graemlins/heart.gif[/img] draw on the turn, I'd say you're behind. Time to give up and move on to the next hand. You tried your best to maximize your chances of winning here, but it just didn't work out. Wait until you have a pair and they can pay you off. Don't be the one paying off with Q-high.