Fold set v LAG ?

[simpsp31]

Villian is 46\24. Total agg 1.58 wsd 26. Hes obviously very loose and aggressive but definitely seems to have a good idea of his image and i havent seen him spew in any big pots. (I've seen him stack off with top pair, weak kicker several times in 100BB pots).

I feel i should have just bet 400 on turn but my thoughts at time were he had overpair or set to call my flop raise, therefore betting turn would get me stacked by all higher sets and allow him to fold QQ, JJ etc.

Party Poker, $3/$6 NL Hold'em Cash Game, 6 Players
LeggoPoker Hand History Converter

Hero (CO): $1,159.10
BTN: $928
SB: $353.75
BB: $618.05
UTG: $591
MP: $1,524.64

Pre-Flop: 5[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/club.gif[/img] dealt to Hero (CO)
UTG folds, <font color="red">MP raises to $24</font>, Hero calls $24, BTN calls $24, SB calls $21, BB calls $18

Flop: ($120) T[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/spade.gif[/img] (5 Players)
SB checks, BB checks, <font color="red">MP bets $108</font>, <font color="red">Hero raises to $270</font>, 3 folds, MP calls $162

Turn: ($660) A[img]/images/graemlins/diamond.gif[/img] (2 Players)
MP checks, Hero checks

River: ($660) K[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">MP bets $1,230.64 and is All-In</font>,