I think a flush draw is out of the question (and did at the time) - he's not much of a chaser, especially against a reraise. That's why I figure he has an Ace (maybe two pair?). If he had AQ, then he probably would have called the river push. He was fairly tight preflop and he raised. $2 is his standard - never varies even in full ring.

In hindsight my turn bet was too weak. At the time I wanted to bet enough to get some money in there but appear a little weak so he could make a confident reraise or river bet. If I was smarter, I would have bet $20 and got him more committed. I think anything too high may scream set and scare him off.