[bluefeet]

I'd make it at least 75 to go PF from Button.

Flop lead - fine.
Turn - Well, you're giving the river free to the FD, but I'd probably check behind here vs. firing a second shot.

Checking behind, I'd be prepared to spend a similar looking amount you did here on the turn...occasionally with the better hand when he bluff bets a missed draw into your apparent disinterest.

(folding after hi c-raise is a good thing on this turn)