weird spot in 3bet pot vs regular (Unkle_Rukus)

[Casper05]

Villain is probably one of you...I know we've played together before, but I'm on a new computer so I dont have any stats/notes other than this session.

UTG is a fish, obv
Villain is running 21/18
I have no idea how he views me...I've been pretty card dead/nitty so far.

Full Tilt Poker, $1/$2 NL Hold'em Cash Game, 4 Players
LeggoPoker Hand History Converter

BB: $225.30
UTG: $344.55
BTN: $402
Hero (SB): $212.35

Pre-Flop: Q[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/club.gif[/img] dealt to Hero (SB)
UTG calls $2, <font color="red">BTN raises to $12</font>, <font color="red">Hero raises to $40</font>, 2 folds, BTN calls $28

Flop: ($84) K[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, BTN checks

Turn: ($84) 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $45</font>, Hero folds