100NL, why i didnt 3 bet him preflop?

[pokerfan]

villain is 11.3/9.36/6 over 600 hands. Maybe i should 3 bet pop up to $16 preflop. As played, what should i do on this undercard paired flop given that he cb big into 3 guys? Do you folks 3 bet this tightish most of the time ip?

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)

MP3 ($123.10)
Hero ($109)
Button ($114.45)
SB ($27.80)
BB ($111.05)
UTG ($68.15)
UTG+1 ($99.30)
MP1 ($112.10)
MP2 ($47.15)

Preflop: Hero is CO with , .
UTG calls $1, 1 fold, MP1 raises to $5, 1 fold, MP3 calls $5, Hero calls $5, 3 folds, UTG calls $4.

Flop: ($21.50) , , (4 players)
UTG checks, MP1 bets $15, MP3 folds, Hero ?

[XTR1000]

I 3bet pre

As played call flop and fold most turns if he leads again