Ace on the Button 200NL

[DukeofJheim]

One of the spots I have trouble with. Have absolutley no read on villain, no history

Full Tilt Poker, $1/$2 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

UTG: $232.05
MP: $310.10
CO: $41.30
Hero (BTN): $197
SB: $202.75
BB: $281.60

Pre-Flop: 7[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/heart.gif[/img] dealt to Hero (BTN)
3 folds, <font color="red">Hero raises to $7</font>, SB folds, BB calls $5

Flop: ($15) 4[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $10</font>, <font color="red">BB raises to $30</font>, Hero calls $20

Turn: ($75) 8[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">BB bets $44</font>, Hero calls $44

River: ($163) 4[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">BB bets $100</font>, Hero folds

Results: $163 Pot ($3 Rake)
BB mucked and WON $160 (+$79 NET)

Thoughts on how you would play in these spots?