Flop set on monotone board vs aggression

[Silverthunder]

This post is mainly for some of the other microstakes players to see what they think of this hand. I am not really posting it for my own information; I just thought it was a bit interesting for others.

Cake Poker No-Limit Hold'em, $0.50 BB (6 handed) - Cake-Poker Converter Tool from FlopTurnRiver.com

MP ($126.25)
Hero (CO) ($46.10)
Button ($51.10)
SB ($50.55)
BB ($64.85)
UTG ($42.05)

Preflop: Hero is CO with 3:club:, 3:heart:
1 fold, MP bets $2, Hero calls $2, 3 folds

Flop: ($4.75) 3:diamond:, J:diamond:, A:diamond: (2 players)
MP checks, Hero bets $3.65, MP calls $3.65

Turn: ($12.05) 4:heart: (2 players)
MP checks, Hero bets $9, MP raises to $22.40, Hero calls $13.40

River: ($56.85) Q:heart: (2 players)
MP bets $14, Hero ????

With the turn raise, I had 11 outs to his flush.

Info on villain: I have seen him at the tables a fair amount, seems to have been playing a fair amount recently, a bit of multitabling. Sometimes limps weak hands & will even 3 bet them when raised (saw him do this with 95o from the cutoff). Limp folds, too. 3 bet with Q5o.
bluffed at pots but with small bets, 50% and under pot, often on the turn.
-raise Q7s on the cutoff.
-played UTG with 74s (not sure if he limped or raised it)
-defended J9s from SB