Incredibly Weak River Fold? Analysis Please!

[nokona13]

Party Poker No-Limit Hold'em Tourney, Big Blind is t50 (7 handed) converter

CO (t1405)
Button (t330)
SB (t940)
Hero (t870)
UTG (t1435)
MP1 (t2660)
MP2 (t360)

Preflop: Hero is BB with 5[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">4 folds</font>, Button calls t50, SB completes, Hero checks.

Flop: (t150) 4[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets t50</font>, <font color="#CC3333">Hero raises to t200</font>, Button folds, SB calls t150.

Turn: (t550) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets t300</font>, SB calls t300.

River: (t1150) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets t390 (All-In)</font>, Hero folds.

Final Pot: t1540

Okay, not too much read on villain except he LOVES to limp in. He limped into like 1/2 - 2/3 of the pots before this, so he could have pretty much anything. But he folded routinely even to smallish bets after the flop. His only winning hand to this point was from the big blind where he flopped 333 and got paid off by two pair. So my thoughts on the flop were that this was either a blocking bet with 2 hearts or a weak bet with Ax. Should I be folding to small bet from a passive player, assuming he only bets with two pair or better? Then on the river, I'm thinking he was just being an idiot and that I can push him off a draw now. Then he calls.... How was my line here?



Oh, and I feel like this is routine, but I just want to make sure. Villain here has made various open-raises of all sizes, including min-raise, before.

Party Poker No-Limit Hold'em Tourney, Big Blind is t200 (4 handed) converter

Button (t3982)
Hero (t1345)
BB (t1010)
UTG (t1663)

Preflop: Hero is SB with Q[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Button raises to t400</font>, <font color="#CC3333">Hero raises to t1345 (All-In)</font>, <font color="#666666">1 fold</font>, Button calls t945.

Flop: (t2890) 4[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Turn: (t2890) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

River: (t2890) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: t2890