NL50 - A5s, deep, TP, Turndonk

[Parvex]

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($98.40)
SB ($49.50)
BB ($61.60)
UTG ($149.05)
MP ($119.75)
CO ($27.35)

Preflop: Hero is Button with 5[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
UTG calls $0.50, MP calls $0.50, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $3</font>, <font color="#666666">2 folds</font>, UTG calls $2.50, MP calls $2.50.

Flop: ($9.75) Q[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, MP checks, <font color="#CC3333">Hero bets $9.25</font>, UTG calls $9.25, MP folds.

Turn: ($28.25) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets $14.5</font>, Hero calls ???

Villain is 39/2/2.1 over 88 hands. Remember one hand, that marked him as stationish in my mind, when I raised the CO, he called in the BB. Flop came 8Q2, two diamonds, and he check/called my c-bet, then b/c'ed my turn push when I made my gutshot with the Jd, revealing A6o with the Ad.
No reads besides that.

I felt really uncomfortable. On the one hand I have TP and he is the donk that he is, but on the other hand I don't like to give away to the control of the hand, maybe facing a well-sized bet on the river being this deep. And I just have TP of course...

So just fold? Or call a bet and fold on River? Or just call down mode?