Donkiest play ever?

[aggie]

5-5 NLHE, UTG limps and I utg+1 (4.5k) raise with AdAs…Button calls (1k), BB calls (5k), UTG folds.

The game is 6-handed and tight and I’m playing extremely laggish and picking up a lot of pots. I have a long history with villain who’s a predictable TAG…

Flop As – Kd – 10d

Villian bets 50 I call and button folds. Button pretty much gave away that he was going to fold. My immediate thought when villain bets is that he has the case A (he is not a semi-bluffer).

Turn 6c (As – Kd – 10d)

Villian bets $75 and I call. I’m now almost certain villain has an A and is pretty weak. He would make a big bet with any strong holding. I’m also certain that he will get off AQ or AJ if I raise. He will probably pay me off any river that misses him. I plan on firing on the river no matter what if checked to as villain plays straightforward.

River Qh (6c - As – Kd – 10d)

Villian hesitates for a few seconds and bets $300. I call.

Donkiest play ever?