villian is a 18/12/2 regular( his 3 bet% is overall 3% and river AF is 2.3) My notes on this guy is he overbet with nuts on the river. He probably views me as a TAGish player. Damn it! Should i make a nitty fold based on his bet sizing and my note? My UTG range is so strong in this 3 way pot that i cant even think about any worse hands on his part at this point.
No-Limit Hold'em, $1.00 BB (7 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

SB ($122.10)
BB ($328.80)
Hero (UTG) ($145.15)
MP1 ($31.25)
MP2 ($126.45)
CO ($40.55)
Button ($100)

Preflop: Hero is UTG with A, A
Hero bets $4, 3 folds, Button calls $4, 1 fold, BB calls $3

Flop: ($12.50) 2, 3, 2 (3 players)
BB checks, Hero bets $8, 1 fold, BB calls $8

Turn: ($28.50) 4 (2 players)
BB checks, Hero bets $18, BB calls $18

River: ($64.50) 7 (2 players)
BB bets $49, Hero ?