Post-flop fold?

[amead]

MP has been spewing chips, and was generally very loose. He was pretty passive, so that should have affected my decision I think. His raise worried me due to the passive factor, but I couldn't see myself folding TT preflop, and a raise didn't thrill me either.

The flop was obviously bad for me, but after his PF raise, I felt like folding would have been quite weak-tight (a tendency I'm struggling with anyhow). Any raise was probably going to pot-commit him, so the push didn't surprise me (though it did make me feel ill). His short stack posed quite the problem. Could things have gone differently?

Party Poker No-Limit Hold'em, $0.5 BB (6 max, 5 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

MP ($18.32)
Hero ($46.45)
SB ($24.5)
BB ($45.7)
UTG ($52.8)

Preflop: Hero is Button with T/images/graemlins/spade.gif, T/images/graemlins/heart.gif.
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $3</font>, Hero calls $3, <font color="#666666">2 folds</font>.

Flop: ($6.75) K/images/graemlins/diamond.gif, 9/images/graemlins/heart.gif, 4/images/graemlins/heart.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP bets $3</font>, <font color="#CC3333">Hero raises to $10</font>, <font color="#CC3333">MP raises to $15.32 (All-In)</font>, Hero calls $5.32.

Turn: ($37.39) 4/images/graemlins/diamond.gif <font color="#0000FF">(2 players, 1 all-in)</font>

River: ($37.39) 7/images/graemlins/spade.gif <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: $37.39

Results in white below: <font color="#FFFFFF">
MP has Kh Qd (two pair, kings and fours).
Hero has Ts Th (two pair, tens and fours).
Outcome: MP wins $37.39. </font>