AA ip, usual raised pot, dry board, TAG donks big all the way

[friend_]

Villain is 23/14/10 but only 44 hands, no reads.

Prima Network No-Limit Hold'em, $10.00 BB (5 handed) Hand History converter Courtesy of PokerZion.com

SB ($985.00)
BB ($997.00)
UTG ($695.00)
Hero ($1120.00)
Button ($1146.00)

Preflop: Hero is MP with A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $40</font>, <font color="#666666">2 folds</font>, BB calls $30.

Flop: ($85) 5[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $70</font>, Hero calls $70.

Turn: ($225) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $225</font>, Hero calls $225.

River: ($675) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $672 (All-In)</font>, Hero calls $672.

Final Pot: $2019

I am really feel lost in this hand.
Here are my questions:
1) I am commited on this flop?
2) Should I fold in this hand and if yes, where should I fold?