Difficult Decision with Overpair?

[krasserpan]

Villain is 17/15. I haven't played many hands with him, but until now, he folds very often to Cbets.

PokerStars No-Limit Hold'em, $20 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

saw flop|<font color="#C00000">saw showdown</font>

<font color="#C00000">CO ($2149)</font>
Button ($3077)
SB ($2010)
BB ($2489)
UTG ($2000)
<font color="#C00000">Hero ($2597)</font>

Preflop: Hero is MP with J[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $70</font>, CO calls $70, <font color="#666666">3 folds</font>.

Flop: ($170) 6[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $120</font>, <font color="#CC3333">CO raises to $240</font>, <font color="#CC3333">Hero raises to $520</font>, CO calls $280.

Turn: ($1210) 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $740</font>, <font color="#CC3333">CO raises to $1559</font>, Hero calls $819.

River: ($4328) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: $4328

Results in white below: <font color="#FFFFFF">
Hero has Jd Js (two pair, jacks and twos).
CO has 6s 7s (two pair, sixes and twos).
Outcome: Hero wins $4328. </font>

I have put him on any pocket pair higher than 66. Should I have folded my hand in any situation?