50NL - AJo flops NFD, I go all in

[Willem]

Villain is a 26/21/5, but his flop aggression is 8.
He seems to 3-bet both in and out of position a lot, and seems like a good, thinking player.

1. How good/bad would it have been to 4-bet him pf here?

2. Is there any other way to play this hand than the way I played it?

3. And what about if this villain would have been more passive from his stats? I think that would indicate a stronger hand by his raise on the flop, so my FE may be less, does this really matter here?

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

CO ($53.55)
Button ($49.75)
SB ($61.50)
Hero ($74.15)
UTG ($29.95)
MP ($31.70)

Preflop: Hero is BB with A[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/heart.gif[/img].
UTG calls $0.50, <font color="#666666">1 fold</font>, <font color="#CC3333">CO raises to $2.5</font>, <font color="#666666">2 folds</font>, Hero calls $2, UTG folds.

Flop: ($5.75) 2[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $4</font>, <font color="#CC3333">CO raises to $12</font>, <font color="#CC3333">Hero raises to $71.65</font>, CO calls $39.05 (All-In).

Final Pot: $107.85