paste your hand histories in the converter above and then push convert...you will get more responses that way
I would say you should have raised the flop...but as played you should pot it on the turn...If he rarely 3bets he is likely playing AA**, AKK*, these types of hands. I dont know the numbers like some people here and I don't know how often he has a higher flush but I don't think he was 3betting and C-betting with a flush draw unless it was AA** with a spade draw...