Trip Aces on Flop v Tough Opponent

[BigDan9]

Villain is 23/6/2.85 over 17,685 hands. A tough, if sometimes overly aggressive, opponent who I've played a lot with. He knows me to be tighter and a little less aggressive.

Pacific Poker No Limit Hold'Em, $2/$4 (7 handed).

SB ($212)
BB ($150)
UTG ($216)
UTG+1 ($518)
Villain ($390)
Hero ($413)
Button ($212)

Preflop: Hero is CO with A[img]/images/graemlins/club.gif[/img]T[img]/images/graemlins/spade.gif[/img]. UTG calls, 1 fold, Villain calls, Hero raises to $18, 4 folds.

Flop: ($57) A[img]/images/graemlins/diamond.gif[/img]A[img]/images/graemlins/heart.gif[/img]4[img]/images/graemlins/diamond.gif[/img] (2 players)
Villain checks, Hero bets $45, Villain raises to £122, Hero calls.

Turn:($300) 5[img]/images/graemlins/heart.gif[/img] (2 players)
Villain checks. Hero??

My one fairly confident read was that Villain didn't have AK-AJ as, 95% of the time, he would raise (or even re-raise) with those hands pre-flop in late position.