Noob Q#4: folding A2

[HoldingFolding]

On the turn I still had a chance of sneaking the high too, so I called, but is this an easy fold on the river?

Party Poker
Pot Limit Omaha Ring game
Blinds: $0.10/$0.25
10 players
Converter

Stack sizes:
UTG: $43.09
UTG+1: $17.75
UTG+2: $32.72
Hero: $47.35
MP2: $24.75
MP3: $22.80
CO: $25.80
Button: $28.47
SB: $8.15
BB: $9.15

Pre-flop: (10 players) Hero is MP1 with T[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/club.gif[/img]
UTG folds, UTG+1 calls, UTG+2 folds, Hero calls, 3 folds, Button calls, SB calls, BB checks.

Flop: 4[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] ($1.25, 5 players)
SB checks, BB checks, UTG+1 checks, Hero checks, <font color="#cc0000">Button bets $1.20</font>, SB folds, BB calls, UTG+1 folds, Hero calls.

Turn: 6[img]/images/graemlins/club.gif[/img] ($4.65, 3 players)
BB checks, Hero checks, <font color="#cc0000">Button bets $4.65</font>, BB folds, Hero calls (????).

River: 3[img]/images/graemlins/spade.gif[/img] ($13.45, 2 players)
Hero checks, <font color="#cc0000">Button bets $13.45</font>, Hero ????