Am I beat more often than not with AK here?

[faquewdikhed]

*********** # 1 **************
PokerStars Game #1385331101: Tournament #6257185, Hold'em No Limit - Level III (25/50) - 2005/03/20 - 02:40:42 (ET)
Table '6257185 1' Seat #5 is the button
Seat 1: spyder1 (1255 in chips)
Seat 2: Biteme1424 (2940 in chips)
Seat 5: The Amoeba (2285 in chips)
Seat 8: aabubbakk (2520 in chips)
aabubbakk: posts small blind 25
spyder1: posts big blind 50
*** HOLE CARDS ***
Dealt to The Amoeba [Ah Kd]
Biteme1424: calls 50
The Amoeba: raises 150 to 200
aabubbakk: folds
spyder1: folds
Biteme1424: calls 150
*** FLOP *** [4h 4s Ac]
Biteme1424: checks
The Amoeba: bets 650
Biteme1424: raises 700 to 1350
The Amoeba: raises 700 to 2050
Biteme1424: raises 690 to 2740 and is all-in
The Amoeba: calls 35 and is all-in
*** TURN *** [4h 4s Ac] [8s]
*** RIVER *** [4h 4s Ac 8s] [3d]
Biteme1424 said, "caught the 4 this time"
*** SHOW DOWN ***
Biteme1424: shows [4c Qc] (three of a kind, Fours)
The Amoeba: shows [Ah Kd] (two pair, Aces and Fours)
Biteme1424 collected 4645 from pot
*** SUMMARY ***
Total pot 4645 | Rake 0
Board [4h 4s Ac 8s 3d]
Seat 1: spyder1 (big blind) folded before Flop
Seat 2: Biteme1424 showed [4c Qc] and won (4645) with three of a kind, Fours
Seat 5: The Amoeba (button) showed [Ah Kd] and lost with two pair, Aces and Fours
Seat 8: aabubbakk (small blind) folded before Flop

[curtains]

Your flop bet is way too large here with AK. On such a mild board like A44, a normal bet is 1/2-2/3 the pot.

[morgan180]

what's the buy-in?

>>make a note the guy's a fish???

[faquewdikhed]

pokerstars 6 handed 12/1 table.

Curtains, did I commit myself with too large of a bet? I think I would still have a very tough time laying this down, seeing as how he called my preflop raise.