200NL cash - turned straight four cards on board - fold?

[Vinetou]

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

Hero ($550)
Button ($253.65)

Preflop: Hero is BB with 5[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Button raises to $6</font>, Hero calls $4.

Flop: ($12) J[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $8</font>, Hero calls $8.

Turn: ($28) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $22</font>, <font color="#CC3333">Hero raises to $64</font>, <font color="#CC3333">Button raises to $239.65</font>,?????

Pretty standard fold, right? He is aggressive but he is not doing this without an 8, I think. So at best I have the same hand as he does. It seems like we have a split pot here at best. I have a hard time laying down that hand. Is this supereasy fold or do you sometimes call here?

Do you prefer just calling the turn and also the river?