2/5 NL - $1k deep

[howzit]

thanks for any input and feedback since i rarely post no limit hands.

i have crazy image but have gotten my stack up by playing pretty good postflop.

some bluffs i've shown:
-- two barreled a king high rainbow board.
-- bluff raised in position a river flush card
-- flashed the 3c when i 4 bet somebody preflop.


winning hands:
-- potted the river w/a boat on a paired board when the flush didn't get there.
-- 3/4 pot the river when the flush hit on turn and the aggresor on every street checked the river.
-- potted turn against a short stack all in with trip fives.

i stacked the villain (button) earlier in the night when i called on the turn w/pair + straight/flush draw vs his TPTK and i hit. he'd be very happy to double up through me althought he's been avoiding me.

BB: 2k
Straddle: 1k
me: cover
button: 1k

straddle is on, i open for $40 w/KQ some where near the button. button (ABC player but thinks i'm full of it) calls, nut peddling BB calls, and straddler (loose/passive) calls.

flop: ($160) Qc 7s 6c
checked to me. . . i fired $150 and get promptly raised by the button to $350. other two players fold, and now i'm faced with button who has 600 left.

ugh. i really screwed up pot control here. what's my play now? and what should've been my bet size originally, if at all?