$200+15 heads up hand

[peanutbutter]

Villain is ComeOnPhish, a fairly solid $200+15 player, more conservative than most. He knows that I'm tight but I doubt that he knows that I know that he knows that I'm tight. However, about 5 hands earlier (T5500) I lost with Q6o vs. his AJo, which prolly made him loosen up a bit.

(Converter is screwed)
Party Poker No-Limit Hold'em Tourney, Big Blind is t600 (2 handed) converter

Villain (t7650)
Hero (t2350)

Preflop: Hero is BB with 4[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
Villain calls t300, Hero checks.

Flop: (t900) K[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero is all-in t1750, Villain calls t1750.

Turn: (t2650) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

River: (t2650) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: t2650

Results in white below: <font color="#FFFFFF">
Villain has 9s 9c (two pair, tens and nines).
Hero has 4h Qd (one pair, tens).
Outcome: Villain wins t2650. </font>

My push was to represent top/middle pair. I felt my push was correct but what I'm curious of is his call.

Was his call justifiable or just dumb? (take his chip lead into account)