AA weak-tight?

[pk Wools]

is my river played too weak?
I asked myself, what does he have here that I beat except KK, which I doubted. I was afraid he called my flop and turn w/ JJ or QQ

also, if he had anything weaker than JJ or QQ, i didnt expect a call

thoughts?

Ultimate Bet No-Limit Hold'em, $.10 BB (6 handed) converter

Button ($10.65)
SB ($9.70)
BB ($5.85)
Hero ($24.60)
MP ($7.04)
CO ($4.10)

Preflop: Hero is UTG with A[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Hero raises to $0.5</font>, <font color="#666666">3 folds</font>, SB calls $0.45, BB calls $0.40.

Flop: ($1.50) T[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets $1.25</font>, SB calls $1.25, BB folds.

Turn: ($4) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $2</font>, SB calls $2.

River: ($8) Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

Final Pot: $8

Results in white below: <font color="#FFFFFF">
SB has Jh Th (two pair, jacks and tens).
Hero has Ah As (two pair, aces and eights).
Outcome: Hero wins $8. </font>