Good fold, or weak?

Villain was quick to call the flop bet and quick to check the turn. That coupled with his preflop raise OOP smells of Aces or Kings. This is a 10+1 of course, but I think this reasoning is still valid. Good fold or weak?

***** Hand History for Game 2759490623 *****
NL Texas Hold'em $10 Buy-in + $1 Entry Fee Trny:15985559 Level:1 Blinds(10/15) - Friday, September 23, 00:55:49 EDT 2005
Table Table 35300 (Real Money)
Seat 5 is the button
Total number of players : 10
Seat 1: Xtatt00 ( $1565 )
Seat 2: neon_city ( $720 )
Seat 3: goldyfishy ( $775 )
Seat 4: mikeml ( $345 )
Seat 5: Dannyk24 ( $895 )
Seat 6: Ramsey03 ( $920 )
Seat 7: denver20 ( $730 )
Seat 8: ChixC ( $690 )
Seat 9: xins0mx ( $590 )
Seat 10: wilbets ( $770 )
Trny:15985559 Level:1
Blinds(10/15)
** Dealing down cards **
Dealt to goldyfishy [ 8d 8h ]
ChixC folds.
xins0mx folds.
wilbets folds.
Xtatt00 folds.
neon_city folds.
goldyfishy calls [15].
mikeml folds.
Dannyk24 folds.
Ramsey03 raises [50].
denver20 folds.
goldyfishy calls [45].
** Dealing Flop ** [ 9h, 9c, 6d ]
Ramsey03 checks.
goldyfishy bets [100].
Ramsey03 calls [100].
** Dealing Turn ** [ Th ]
Ramsey03 checks.
goldyfishy checks.
** Dealing River ** [ 3d ]
Ramsey03 bets [225].
>You have options at Table 35034 Table!.
Your time bank will become active in less than 20 seconds. If you do not want it to be used, please act now.
call
goldyfishy folds.
call
Ramsey03 does not show cards.
Ramsey03 wins 560 chips

[lastchance]

It's a tough spot, but you certainly played it right up to the end. I think he could be stealing a lot of the time with a busted draw, but what kind of draw does the guy have on that board? I think you fold.

[Freudian]

If I was you I would have called that river. But I probably would have let it go preflop just because 88 is hard to play in a raised pot OOP 2-/3-handed (unless you hit a set).

[diebitter]

When I'm holding broadway cards (paired or otherwise) OR a pair, my second favourite flop is a middle/low pair when I've got a single opponent (first is my cards wiring to the board in some way, of course). Very very easy to push someone off by betting 1/3-2/3 the pot. They almost always read this as you having an overpair, and it scares
em.

If they call/raise here, I'm checkfolding/folding the rest of the way usually (unless I pair/set or have a real good pair wired, of course), cos they got 2 pair/set.