2/4 To bet or not to bet?

[AAismyfriend]

Im new to pokerstars, so I'm not too familiar with the regs atm. Villain in this hand seems kinda bad and overly loose postflop, and sorta passive. HouseeLover for those who may knw him. He's been opening a ton of hands preflop so I 3 bet him because I'm ahead of his range and I can probably outplay him postflop if he calls. He called the turn bet pretty quickly FWIW. Do we bet this river? and if so, how much?

Poker Stars - No Limit Hold'em Cash Game - $2/$4 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $685.40
BB: $1,101.15
UTG: $656.60
MP: $505.95
Hero (CO): $562.25
BTN: $99.60

Preflop: Hero is dealt A[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/heart.gif[/img] (6 Players)
UTG folds, <font color="red">MP raises to $16.00</font>, <font color="red">Hero raises to $52.00</font>, 3 folds, MP calls $36.00

Flop: ($110) 4[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/club.gif[/img] (2 Players)
MP checks, Hero checks

Turn: ($110) J[img]/images/graemlins/spade.gif[/img] (2 Players)
MP checks, <font color="red">Hero bets $72.00</font>, MP calls $72.00

River: ($254) 7[img]/images/graemlins/spade.gif[/img] (2 Players)
MP checks, <font color="red">Hero ???