NL25 A3

[HighCardSeven]

Poker Stars - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 4 Players - (LegoPoker Hand History Converter)

SB: $75.00
Hero (BB): $25.00
UTG: $24.80
BTN: $20.10

Preflop: Hero is dealt A[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (4 Players)
UTG calls $0.25, BTN calls $0.25, SB folds, Hero checks

Flop: ($0.85) 3[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/club.gif[/img] (3 Players)
<font color="red">Hero bets $0.75</font>, UTG calls $0.75, <font color="red">BTN raises to $2.25</font>, Hero calls $1.50, UTG calls $1.50

Turn: ($7.60) 8[img]/images/graemlins/spade.gif[/img] (3 Players)
Hero checks, UTG checks, <font color="red">BTN bets $5.00</font>, Hero...

Pot Size: $12.60 ($0.35 Rake)

Villain is 23/13 after 154 hands with TAF 2.38 and WTSD 28.6. I was surprised of his raise on the flop. So I checked on the turn. Is that a mistake? Should I play bet/fold on the flop?
As played what schould I do on the Turn? Just 63, 66, 83 or 88 beats me, so a fold is to weak, right? Should I push it?