£1/£2 top2 vs overpush on flush river on paired board

[Thoth]

Villain is 41/11/4.3 over 134 hands. No real other reads.

Cryptologic - No Limit Hold'em Cash Game - £1/£2 Blinds - 4 Players - (LegoPoker HH Converter)

SB: £217.15
BB: £197.85
UTG: £672.35
Hero (BTN): £209.70

Preflop: Hero is dealt A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] (4 Players)
UTG folds, <font color="red">Hero raises to £7.00</font>, SB calls £6.00, BB folds

Flop: (£16) K[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets £12.00</font>, SB calls £12.00

Turn: ($40) 3[img]/images/graemlins/club.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets £32.00</font>, SB calls £32.00

River: (£104) J[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB bets all-in for £166.15</font>, Hero ...