NL25: fold bottom set?

[coordi]

Villain was 12/6/0 over 31. Finished 11/6/1 over 70.

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP3 ($17.30)
CO ($25.65)
Button ($9.50)
SB ($46.40)
BB ($25)
UTG ($6.95)
UTG+1 ($16.65)
Hero ($30.75)
MP2 ($11.05)

Preflop: Hero is MP1 with 2[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls $0.25, Hero calls $0.25, <font color="#666666">2 folds</font>, CO calls $0.25, <font color="#666666">2 folds</font>, BB checks.

Flop: ($1.10) 8[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, UTG+1 checks, Hero checks, CO checks.

Turn: ($1.10) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">BB bets $0.75</font>, UTG+1 folds, <font color="#CC3333">Hero raises to $2.25</font>, CO folds, <font color="#CC3333">BB raises to $7.25</font>, Hero ?