Waiting for LAGgy

[HoldingFolding]

PP $55. Opponent is aggressive and LAGgy, his typical MO is to call and then bet out on the flop.

Total number of players : 4
Seat 2: Player 2 (2385)
Seat 5: HERO (1705)
Seat 7: Player 7 (2535)
Seat 10: Player 10 (3375)

Player 2 posts small blind (75)
LETMO posts big blind (150)
** Dealing down cards **
Dealt to HERO [ 6 [img]/images/graemlins/spade.gif[/img], Q [img]/images/graemlins/heart.gif[/img] ]
Player 7 folds.
Player 10 folds.
Player 2 calls (75)
HERO checks.
** Dealing Flop ** : [ 4 [img]/images/graemlins/diamond.gif[/img], Q [img]/images/graemlins/spade.gif[/img], 5 [img]/images/graemlins/diamond.gif[/img] ]
Player 2 bets (150)
HERO raises (500) to 500
Player 2 raises (2085) to 2235
HERO ????

Easy fold or is this the sign of flush/straight draw?