50NL 2 Pair, cant put villain on a hand

[RaidanKR]

Villain is 40/6.5/2.5 over about 50 hands, im 22/16 over the same session. Have seen him turn up with junk middle pairs and some raggy aces.

Not mad about my river bet, was a little confused about how he played the turn, trying to extract value. Didnt expect a raise. Is it a call or fold here?

Party Poker, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

UTG: $28.21
MP: $45.17
CO: $34.82
BTN: $54.06
Hero (SB): $49.27
BB: $87.52

Pre-Flop: J 9[img]/images/graemlins/heart.gif[/img] dealt to Hero (SB)
UTG calls $0.50, 3 folds, Hero calls $0.25, BB checks

Flop: ($1.50) 9 4[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/heart.gif[/img] (3 Players)
<font color="red">Hero bets $1</font>, BB calls $1, UTG calls $1

Turn: ($4.50) J[img]/images/graemlins/heart.gif[/img] (3 Players)
<font color="red">Hero bets $3.5</font>, BB calls $3.5, UTG folds

River: ($11.50) T[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $5</font>, <font color="red">BB raises to $15</font>, <font color="red">Hero ??? </font>