25 NL Overpair deep HU

[Warteen]

Got myself into several awful spots tonight and this one capped a downright horrible session. Was my call pure tilt?
Not many hands with this villain, except that I had paid him off when he overbet his rivered 2 pair and it looked to me like a busted draw.

World Poker Exchange, $25 NL, 6 handed

Hero is Button (SB) with ~$47
Villain is BB with ~$40

Hero is dealt [K [img]/images/graemlins/club.gif[/img] K [img]/images/graemlins/heart.gif[/img]]

Preflop:
Hero raises to $1, Villain calls.

Flop ($2):
[T [img]/images/graemlins/diamond.gif[/img] 8 [img]/images/graemlins/club.gif[/img] 4 [img]/images/graemlins/diamond.gif[/img]]

Villain checks, Hero bets $1.50, Villain raises to $3.75, Hero calls.

(I figured I would trap the guy and let him bet the turn, proceed with impunity assuming a non-diamond.)

Turn ($9.50):
[Q [img]/images/graemlins/spade.gif[/img]]

Villain bets $6, Hero raises to $12, Villain pushes all-in for ~$30, Hero calls.

Thoughts on all streets, please. I need to stop playing tired...