NL25 TPTK on two-tone board - pot control vs. protection?

[ras52]

Villain appears tight/passive based on 30 or so hands.

Poker Stars
No Limit Holdem Ring game
Blinds: $0.10/$0.25
9 players
Converter

Stack sizes:
UTG: $8.35
UTG+1: $22.05
MP1: $19.90
Hero: $43.75
MP3: $10
CO: $14.40
Button: $9.45
SB: $12.25
BB: $23.65

Pre-flop: (9 players) Hero is MP2 with Q[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/club.gif[/img]
3 folds, <font color="#cc0000">Hero raises to $0.75</font>, MP3 folds, CO calls, 3 folds.

Flop: Q[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] 2[img]/images/graemlins/diamond.gif[/img] ($1.85, 2 players)
<font color="#cc0000">Hero bets $1.25</font>, CO calls.

Turn: 3[img]/images/graemlins/heart.gif[/img] ($4.35, 2 players)

Then my brain turns to mush. He didn't go away and now I've got a paired board to think about too. Risk giving a free card or keep on firing?