grunch
At this point in the hand, especially after the SB call (what can he have that gets it in like this? Sure looks like a J), I don't feel comfortable continuing. Either one or both have a J (or they don't), but I'm not willing to stake a 500BB starting stack on AA here. You know he's playing for stacks with that raise.
I think the poker clack (sighing, followed by despondent raise) and action dictate a fold.
FWIW, I think I check this flop. If I bet, I bet smaller--no real need for 3/4 pot. The paired board flop is ultra-dry: 175-200 should be more than enough. If the flop was Q
J
3
I would bet closer to 335.