200nl JJ overpair, weird turn bet, lost

[DirteAA]

Villain is about 25/15/2 over only ~60 hands. The turn bet really threw me off. fwiw, his raise c-bet is 80% (4/5). Do sets play like that? I'm good here right?

Full Tilt Poker - No Limit Hold'em Cash Game - $1/$2 Blinds - 5 Players - (LegoPoker HH Converter)

SB: $158.80
BB: $252.55
<font color="black">Hero (UTG): $349.35</font>
CO: $197.00
BTN: $219.50

<font color="black">Preflop:</font> Hero is dealt J[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/heart.gif[/img] (5 Players)
<font color="red">Hero raises to $7.00</font>, CO folds, BTN calls $7.00, SB folds, BB calls $5.00

<font color="black">Flop:</font> ($22) 9[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] (3 Players)
BB checks, <font color="red">Hero bets $16.00</font>, <font color="red">BTN raises to $32.00</font>, BB folds, Hero calls $16.00

<font color="black">Turn:</font> ($86) 3[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $108.00</font> Hero...