2/5 MGM, Unusual Situation. Exposed cards.

[JMP300z]

Playing 2/5.

Relevant info:

I have a pretty crazy image. Ive shown some bluffs, been straddling every time and basically been unafraid to put lots of money in the pot. Ive put in a big preflop reraise before and shown down a weak hand.

Villains in this hand.
UTG+2-Straightfoward...Ive been talking to him for a while and he miraculously told me about the "tell" he picked up on me, which was actually a false tell i was sending, but nonetheless...anyways he picked it up from caro so we know hes a little educated...just not too bright. He actually respects my play.

MP player: On some kind of tilt. Had a big stack when I first sat down. Since I called him down with a pair of 7s and he was bluffing every street, things have been downhill and hes rebought a couple times. Thinks im a donk.

UTG+1 w/ QQ and about 6-700 behind.
I make it 20 to go. UTG+2 with about 500 makes it 40. MP smooth calls and it gets back to me. UTG+2 looked uncomfortable about MP's call so I make it 200. UTG+2 folds AQs face up on the table. MP calls.

Pot is 447.

Flop is A 8 4 rainbow.

Action?

-JP