[lil']

Why did you raise the flop? Because you thought there was a good chance your hand was best and your pair was vulnerable to overcards, right? Good raise. The turn is garbage, so the status if your hand hasn't changed at all, and yet you lost all faith in your hand. Don't stop betting. Your pair is still vulnerable to overcards and you have just as much chance to hold the best hand as you did before. Continue betting for the same reasons you raised previously.

I would have bet the river as well. I don't know why he didn't bet the river with 2 pair after you checked...