Another Free Lunch

[TaintedRogue]

20/40 Hold Em live game.
Four fold and I raise with As,Qd. Folded to the button who calls. BB calls.

Flop: 7c,7d,5h

BB checks, I bet, button folds, blind calls.

Turn: [7c,7d,5h]9h

BB checks, I check.

River: [7c,7d,5h,9h]Tc

BB bets. I fold. BB flashes AT. How bad did I play it?