NL100 bottom two pair. right push?

[2weak]

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.50/$1
5 players
Converter

Stack sizes:
UTG: $108.75
CO: $232.65
Hero: $100
SB: $155.50
BB: $71.70

Pre-flop: (5 players) Hero is Button with 4[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/club.gif[/img]

<font color="#cc0000">UTG raises to $4</font>, CO folds, Hero calls, 2 folds.

Flop: K[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] ($9.5, 2 players)
<font color="#cc0000">UTG bets $6</font>, <font color="#cc0000">Hero raises to $18</font>, <font color="#cc0000">UTG raises to $46</font>, <font color="#cc0000">Hero raises all-in $78</font>, UTG calls.



villain has tag preflop stats and is very aggressive postflop.(4.5)

I think he could reraise here with air but i dont think he will often do it.
Following hands beat me:
K4
K3
44
33
KK

im almost 100% sure he has not K4 or K3 because he is tight preflop. He wouldnt reraise me with KK (maybe 30% of the time).
So the only two hands that i fear are 33 or 44 (i have 43 so the chance that he has 33 or 44 here is smaller than normally).

The hands with which he raises pf, 3bets the flop and calls a push and which i beat are:
AA
AK
KQ (not sure if he really would stack off with KQ here lets say 50% of the time)
(maybe even sometimes QQ or so but atm i dont know how good or bad he is to count it towards his range)
56 might be a possibilty knowing he plays really aggressive postflop
comments?