Another dumb play. Opinions Please. (Contains HH)

DubTony

Your comments are appreciated. I've a pretty good idea of what I did wrong, but would like some feedback.
It's a $2 SNG and I've had to pick away at pots to get the slim chip lead.
This guy has pushed on several occasions, even when behind in chips, and when called has shown less than decent hands but gotten lucky. He was very aggressive pre-flop from any position and suffered huge swings.

Average Stack: 3,750 (1,500 starting chips)
Remaining Players: 4 (10 started)
Seat 1 : starts with 2,650
Seat 2 : IrishTony starts with 5,025
Seat 5 : pretorian starts with 4,625
Seat 9 : starts with 2,700
Seat 2 : IrishTony has the dealer button
DEALING HOLE CARDS<<<
IrishTony dealt down Qs Js

Antes posted 50 each

pretorian posts the small blind 200
Seat 9 posts the big blind 400
Seat 1 folds
IrishTony calls 400
pretorian calls 200
Seat 9 checks
DEALING FLOP<<< [ 4d Jd 7h ]
pretorian checks
Seat 9 checks
IrishTony bets 1,400 (With a flush draw on the board I didn't want any drawers tagging along)
pretorian raises 2,775 to 4,175 and is all-in (My thoughts here were that if he had a hand there was no need to push and put him on the flush draw, top pair with weak kicker or a bluff.)
Seat 9 folds
IrishTony calls 2,775 (eventually)
pretorian cards were 4c 7c
IrishTony cards were Js Qs
DEALING TURN<<< [ Ac ]
IrishTony: oh man
DEALING RIVER<<< [ 2s ]

I busted out next hand with ATs to a pair of Kings.

Culchie

I can't see how you could avoid being hurt that hand

Hectorjelly

You should raise or fold that preflop, which would of stopped that happening.

Dave

Yeah, I'd raise with QJ soooted preflop 4 handed, in your position.