I think the turn and river are both close decisions, and it's hard to fault folding the turn when it pairs the board and makes a 3 flush. Then again it's likely you did initiate his bet by checking.

The river is not a place to Clakmeister. Here you likely HAVE the best hand, but don't like to see a raise. Villian has been betting the whole way, and if he checks through the river chances are 1) you have him beat and 2) he was not calling a river bet anyhow. For that reason I like a check/call line on the river.