TPNK river raise HU

[Sponger.]

Villain plays pretty much every hand. About 80vpip/30pfr over 86 hands so far. Tricky aggro postflop but he still sucks so I'm going to win lots of monies.

He figures I cbet a lot so he floats or calls a lot of flops with one pair. Leads weak as a bluff or with something really marginal. His river bet is crap, but maybe he thinks I floated the turn because if I had a real hand I'd raise the turn and now he is going to hero call with some garbage? Or am I overthinking this?

Full Tilt Poker - No Limit Hold'em Cash Game - $2/$4 Blinds - 2 Players - (LegoPoker HH Converter)

BB: $384.20
Hero (SB): $425.00

Preflop: Hero is dealt K[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero raises to $12.00</font>, BB calls $8.00

Flop: ($24) Q[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/club.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $20.00</font>, BB calls $20.00

Turn: ($64) 6[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">BB bets $20.00</font>, Hero calls $20.00

River: ($104) 6[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">BB bets $20.00</font>, <font color="red">Hero raises to $120.00</font>, BB folds
Uncalled bet of $100.00 returned to Hero

Pot Size: $144.00 ($0.50 Rake)