2/4 Very Curious turn overbet, what would u do?

[stew77]

Villain just took a big pot off me after calling my big stack push on the turn, i had two pair and he had flush draw, river he hit flush....he has raised 70% of his hand preflop..here is the hand...
Table 'Peiraios' Seat #5 is the button
Seat 1: ($357.05 in chips)
Seat 2: ($394 in chips)
Seat 3: ($105.90 in chips)
Seat 4: villain ($406.40 in chips)
Seat 5: ($605.85 in chips)
Seat 6: HERO($497.45 in chips)
*** HOLE CARDS ***
Dealt to HERO [6d 8d]
UTG: calls $4
UTG2: calls $4
: folds
HERO: calls $2
bb: raises $4 to $8
utg: calls $4
VILLaIN: calls $4
HERO: calls $4
*** FLOP *** [5s 7d Jd]
HERO: checks
BB: checks
UTG: bets $16
VILLAIN: raises $16 to $32
HERO: calls $32
BB: folds
UTG: calls $16
*** TURN *** [5s 7d Jd] [Kd]
HERO: checks
UTG: checks
VILLAIN: bets $366.40 and is all-in

WHAT IS MY PLAY HERE???, such a massive overbet ... his min raise on the flop had me thinking he was trtying to make room for a free card for his flush draw .. RESULTS later