50NL - QJs in a tough spot (2 pair, facing aggression)

[thing85]

Villain is 36/7.5/1.14 over 160 hands.

Poker Stars, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

MP: $16.25
CO: $23.30
Hero (BTN): $64
SB: $56.50
BB: $76.40
UTG: $65.05

Pre-Flop: Q[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/spade.gif[/img] dealt to Hero (BTN)
UTG calls $0.50, 2 folds, <font color="red">Hero raises to $2.50</font>, 2 folds, UTG calls $2

Flop: ($5.75) J[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">UTG bets $1.50</font>, <font color="red">Hero raises to $8.50</font>, <font color="red">UTG raises to $19</font>, Hero calls $10.50

Turn: ($43.75) 6[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">UTG bets $43.55 and is All-In</font>, Hero...?

I definitely messed up the flop (I hate my flat call), but I was hoping the turn would clear things up. There's really no threat of any draw besides the SD, so if he's protecting anything, it's a TPTK/2pair/set. However, he leads out for such a small amount that he'd be giving ME odds to call if I was a draw. The guy is a bit of a donkey, so I didn't want to immediately put him on a straight. When donks lead into you for a small amount, they're usually on a draw. I think 90% of the time, if a donk flops the nut straight, he slowplays it, especially considering my PF aggression.

But, when I come back with a raise, he 3bets me for a fairly small amount. This is where I get completely lost, and decide to call and reevaluate on the turn.

Turn is a blank, but he shoves. WTF? This looks like a set or straight at this point, but it could very well be something like J9s/Q9s. What do I do?