TP Low Kick, Villain w/ Aggression

Villain has played aggressively since he sat at the table. I'm also in the middle of a bad session here, which explains my actions.

0.50/1 Texas Hold'em Game Table (Limit)

Table Table 55895 (6 max) (Real Money) -- Seat 3 is the button
Total number of players : 5
Seat 1: RandL1978 ( $42)
Seat 2: brokenpuck ( $16.75)
Seat 3: Justice225 ( $11.49)
Seat 5: ditzichick ( $11)
Seat 6: HERO ( $14)
ditzichick posts small blind (0.25)
HERO posts big blind (0.50)

Dealt to HERO [ 6[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img] ]
RandL1978 folds.
Justice225 raises (1) to 1
ditzichick calls (0.75)
HERO calls (0.50)

FLOP : [ A[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/spade.gif[/img] ] (6SB)
<font color="red">ditzichick bets (0.50)
HERO raises (1) to 1
Justice225 raises (1.50) to 1.50</font>
ditzichick calls (1)
HERO calls (0.50)

TURN : [ 7[img]/images/graemlins/diamond.gif[/img] ] (3.25BB)
ditzichick checks.
<font color="red">HERO bets (1)
Justice225 raises (2) to 2</font>
ditzichick folds.
HERO folds.

I feel like this wasn't a good fold, like its too passive. OTOH, the third diamond definitely hit on the turn, and TP with 6 kick is definitely no guarantee.
-AC