BTN: 129.4 BB (VPIP: 33.33, PFR: 20.00, 3Bet Preflop: 13.33, Hands: 49)
SB: 149.4 BB (VPIP: 28.57, PFR: 10.71, 3Bet Preflop: 0.00, Hands: 31)
BB: 100 BB (VPIP: 34.29, PFR: 25.71, 3Bet Preflop: 7.69, Hands: 36)
Hero (UTG): 162.8 BB
MP: 97.4 BB (VPIP: 20.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 10)
Villan: 109.2 BB (VPIP: 26.83, PFR: 24.39, 3Bet Preflop: 20.00, Hands: 45)

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has Qd Ad
Hero raises to 3 BB, fold, CO calls 3 BB, fold, fold, fold

Flop : (7.5 BB, 2 players) Td 6d 7d
Hero bets 5.4 BB, CO calls 5.4 BB

Turn : (18.3 BB, 2 players) 2d
Hero checks, CO checks

River : (18.3 BB, 2 players) 6c
Hero bets 25 BB, CO raises to 92.5 BB, fold

Hello guys this is a hand that is giving me much taught lately. I think in general I played quite bad. I open AQs UTG and get jammed on river with a nut flush on a paired board. So my strain of taught goes like this.... I think flop play is fine maybe my bet size is a bit big? I absolutely hate that check on turn because it accomplishes nothing. If he had a Kxs or Jxs in his hand he would definitely bet the turn so I think he could only have a set of TT,66,77 and check it behind since the fourth diamond peeled off. I think I should bet the turn big and put him in a tough spot with a set he would have to either jam or fold and I am calling his shove here 100%. On the river thou things get tricky. Board pairs and now my nut flush is probably in bad shape. I hate my overbet because it again does nothing I only get jammed or called by better hands and folds from the hands I beat. I should probably check/call the river or bet small with intention to folding to a raise. What I find strange is that he left like 3bb behind when he raised =) idk maybe he bluffed me. What do you guys think about this hand? Correct me if I am wrong please.
What would be the optimal play here? Thank you in advance! Cheers. Roy