I feel like he is protecting his hand from such a wet board here, that being said taking into consideration the pay jumps is important normally I'd probably put him in but your great position to take this down and there being so many hands that beat you here and could get there on the river I'd probably fold and find a more comfortable spot.

first hand I put this guy on with your check and his 150,000 bet is a medium pp , 77, 88, 99 maybe even 10,10.  If he is very aggressive this would be a shocker bet from that kind of a hand.  but after the turn and he bets so much I don't know if he does this with any of these hands so we have to look more towards AQ, AJ, A10, K10, Q10.  problem  with a few of these hands is he has us crushed.  with the check check if he has any thought process it's that you want a free heart or straight card to fall and since he's playing so hard I feel like gotiath is right in thinking he is protecting his hand which means A10, AQ, 1010.  AK I think he plays strong from the flop with that board texture.  I think we can def fold this hand and get a better spot with our big stack.  I think I would have rather have seen you throw out the bet on the flop though and keep your aggression up unless you planned on check raising him.  

Thats why you should fold pre ;). I don’t mind opening that HJ or better but MP1 is unnecesary.