AKs 3Bet pot OOP vs UTG raiser, scary flop, 25NL

[Sup3rM4N]

Villain is 25/13 over 91 hands. Folds to 3B 83% of the time and 3Bs himself 7%. This is his 3rd buyin, both times he was ahead when the money went in and he got sucked ou. He might be on tilt but I havent seen a showdown that suggests he is. I don't see what I am beating here from a UTG raiser that calls a 3B besides TT, KK, KQ and maybe chop if he has AK. Confused as what I should do, B/F?

PokerStars No-Limit Hold'em, $0.25 BB (6 handed)

UTG ($26.55)
MP ($35.80)
CO ($24.65)
Button ($13.20)
Hero ($39.05)
BB ($19.75)

Preflop: Hero is SB with , .
UTG raises to $1, 3 folds, Hero raises to $4, 1 fold, UTG calls $3.

Flop: ($8.25) , ,

[meeloche]

I check, your hand is a bluff catcher at best.

[BigLRIP]

Yeah, you don't want to be putting too much money in the pot here. Betting and shutting down once called is good (planning to fold to a raise as much as it makes me sick), checking is fine too but might make for akward decisions on later streets.

[Fnord]

Check, not sure if I call a flop bet. Would certainly fold to a flop + turn bet.