$12 turbo - JJ line check, pretty confused play

yeah I really screwed up on this hand.. teach me to play it pls..

Full Tilt Poker, $11 + $1 NL Hold'em Sit n' Go, 15/30 Blinds, 8 Players
LeggoPoker.com - Hand History Converter

CO: 1,485
BTN: 1,455
SB: 1,470
BB: 1,500
UTG: 2,985
UTG+1: 1,500
Hero (MP1): 1,635
MP2: 1,470

Pre-Flop: (45) J:diamond: J:club: J:diamond: J:club: dealt to Hero (MP1)
2 folds, Hero raises to 90, 2 folds, BTN calls 90, 2 folds

Flop: (225) A:heart: A:club: 6:spade: (2 Players)
Hero checks, BTN bets 150, Hero calls 150

Turn: (525) T:diamond: (2 Players)
Hero checks, BTN checks

River: (525) Q:club: (2 Players)
Hero checks, BTN bets 180, Hero calls 180

Results: 885 Pot

I would have continued to bet the flop as preflop raiser and fold to a RR. But that's just my opionion as a modest newb to see how it compares to others :)