50NL: 2 pairs on the river any good?

[jimmy44]

EverestPoker Game #1729857236: Table Berlin-32 - $0.25/$0.50 - No Limit Hold'em - 21:18:45 - 2007/06/27
Seat 1: jimmy44a ($48.25)
Seat 2: olistar ($101.95)
Seat 3: fides2 ($5.00)
Seat 5: Mr_Tanou ($48.50)
Seat 6: louison-31 ($23.40)
Seat 7: henkkus ($87.00)
Seat 8: olyva95 ($5.50)
Seat 9: sonpi ($37.30)
Seat 10: knarf07 ($56.90)
fides2 posts the small blind of $0.25
Mr_Tanou posts the big blind of $0.50
The button is in seat #2
*** HOLE CARDS ***
Dealt to jimmy44a

louison-31 calls $0.50
henkkus folds
olyva95 folds
sonpi folds
knarf07 calls $0.50
jimmy44a raises to $2.50
olistar folds
fides2 folds
Mr_Tanou folds
louison-31 calls $2.00
knarf07 calls $2.00
*** FLOP *** (pot: $8.25) [ ]
louison-31 checks
knarf07 checks
jimmy44a bets $5.60
louison-31 folds
knarf07 calls $5.60
*** TURN *** (pot: $19.45) [ ] []
knarf07 checks
jimmy44a checks
*** RIVER *** (pot: $19.45) [ ] []
knarf07 checks
jimmy44a bets $10.00
knarf07 raises to $48.80 and is all-in
jimmy44a ???

villain was very loose pre-flop. postflop seemed standard.
On the river I felt I was good and wanted to make villain pay (maybe I overbet it however), but his raise seemed to me like AJ, A3 or air ...

[gingerwizard]

smells like trap checking to me. With a paired board you see at least 3x most of the time here. I check behind the river and as played fold.

[Da GOAT]

i say i still bet the turn planning to check behind river