I do think he can have aces sometimes, You say he's a good player so flatting the 4-bet is super fine with aces, 3-betting from the SB tends to be nutted hands a lot of the time as well, especially if he's only 3-bet 6% of the time?

He's representing the Jack, but they are a super small part of his range, I'm never folding, not with those odds either.

Don't think I would be folding either. I agree with Ash. I think he can have AA here some of the time. If he thinks you are 4b bluffing enough then it might make sense to slowplay AA a little bit. I feel like you can eliminate JJ and QQ. I don't really see why they would donk jam with those on the turn, seeing as they still have another street to get the money in. Maybe QQ some of the time if they are afraid you will check back your overpairs or Jx on a bad river.

I think this is basically Jx or Qx that is trying to protect against all your AK. Don't want you to check back and get a free river. You only need to be right 25% of the time. Its a 4b pot and I know you are slightly deeper but in general top pairs and overpairs get it in. He only needs to have 1 Qx combo for every 3 Jx or AA combos that he does this with. If we think he would only call the 4b with AJs then you only have 2 combos of that and maybe he flats AA with 2 combos out of 6, so you just don't have that much. He has way more Qx with AQ and KQs. Not saying he donk jams like this with all his Qx, but i would imagine he does it enough to justify a call and that isn't counting any bluffs, although not really sure what he would have as a bluff here if we think he is calling the 4b fairly tight and calling a huge flop bet.

Reasonable bluffs Hands I'd say is AK, AT. We cant fold with these odds.

Pre: I'm going larger here pre. $1.10-1.20.

Flop: This is an absolutely awful flop for us, villains cold calling range here will consist of a lot of QQ/JJ, betting will get value from AQ and own ourselves against everything else he will continue with. I'd be inclined to check back here.

Turn: Pot is just too big now to be making hero folds, the J has reduced his possible set combos significantly. I'm going with our hand here, albeit I'm not exactly thrilled about the situation.