I like that flop. I had AAA come up on a flop the other day - the fourth Ace was in my hand. Think I could get anybody to play with me? Not on your life.
In your example, I definitely would have bet the flop, probably around the same size (may be a tad less) as you did. Depending on what I knew about the villain, I probably would have bet the turn as well. When in doubt, I prefer to err on the side of aggression.
If my hand didn't improve on the river, then I would have folded to any reasonably sized bet by him on the river, and lost the same amount as you did. If the river brought an Ace, he would have bet it and I would have called, and we would have split the pot. If it brought a Queen, I would have bet it, he probably would have check-called, and I would have taken down the pot.
If he had the last seven (the odds
are approximately 9800:1 against), he probably wouldn't have bet it till the river. If that happened, well, that's poker - anything can, and will, happen sooner or later.