any way to play this hand better?

PokerStars Game #1939458979: Tournament #9190664, Hold'em No Limit - Level III (25/50) - 2005/06/20 - 18:23:48 (ET)
Table '9190664 1' Seat #8 is the button
Seat 1: curtisangel (815 in chips)
Seat 2: ME (1760 in chips)
Seat 3: shortie74 (1100 in chips)
Seat 4: sactaisho (2700 in chips)
Seat 5: DHa1006 (3095 in chips) is sitting out
Seat 7: Sykedupp (1735 in chips)
Seat 8: GolfPro23452 (230 in chips)
Seat 9: mjd246 (2065 in chips)
mjd246: posts small blind 25
curtisangel: posts big blind 50
*** HOLE CARDS ***
Dealt to ME [Kh Kd]
hemipwered05: raises 100 to 150
shortie74: folds
sactaisho: folds
DHa1006: folds
Sykedupp: folds
GolfPro23452: calls 150
mjd246: calls 125
curtisangel: folds
*** FLOP *** [3s 7d Js]
mjd246: bets 100
ME: raises 400 to 500
GolfPro23452: calls 80 and is all-in
mjd246: calls 400
*** TURN *** [3s 7d Js] [Th]
mjd246: checks
ME: bets 1110 and is all-in
mjd246: calls 1110
*** RIVER *** [3s 7d Js Th] [Qs]
*** SHOW DOWN ***
mjd246: shows [Ts Ks] (a flush, King high)
ME: shows [Kh Kd] (a pair of Kings)
mjd246 collected 3060 from side pot
GolfPro23452: shows [8d Ad] (high card Ace)
mjd246 collected 740 from main pot
mjd246 said, "yes"
*** SUMMARY ***
Total pot 3800 Main pot 740. Side pot 3060. | Rake 0
Board [3s 7d Js Th Qs]
Seat 1: curtisangel (big blind) folded before Flop
Seat 2: ME showed [Kh Kd] and lost with a pair of Kings
Seat 3: shortie74 folded before Flop (didn't bet)
Seat 4: sactaisho folded before Flop (didn't bet)
Seat 5: DHa1006 folded before Flop (didn't bet)
Seat 7: Sykedupp folded before Flop (didn't bet)
Seat 8: GolfPro23452 (button) showed [8d Ad] and lost with high card Ace
Seat 9: mjd246 (small blind) showed [Ts Ks] and won (3800) with a flush, King high

is there anything i coulda done better with this?

I would of raised it much harder pre flop and if he called with that type of hand, there is nothing you can do. More often than not, that wont happen and you will take it down.

You got all your chips in while way ahead. You want people to call in these situations. So don't worry about it.

I don't know if this qualifies as "better play" but I'll chime in with an approach I'll sometimes take on a loose game (like the one you were in) when I have AA or KK from UTG.

If I am better than 50% sure that my hand will get raised from UTG I will limp with AA and KK. If I get limpers all around, I will bet the flop really hard (like 10-15x). If I get a raise, I will reraise really hard (like 10-15x).

Both of these moves are a clear signal that you have group 0 and most plrs will respect that unless they are short stacked and get comitted.

I will especially play it this way if the button is a habitual blinds stealer and will often work that play when there is another limper in the hand.

The pot is already 600 after the flop bet to you, and the board is showing two spades. Push immediately.