[Chomp]

I'm a bit confused as to what you feared on the turn. His bet looks pretty weak to me, although I suppose he is quite passive postflop.

I notice with a lot of these guys that they slow right down post flop if they don't like what they see. They are all crazy preflop, but will only bet hard if hey hit post.

Here, he clearly fears a c-bet steal with the K out there, so I'm surprised you thought your 88 was bad here (although in the heat of battle a fold is perfectly understandable oop). Given stack sizes I would have thought a call is ok here followed by a river check as he's probably not bluffing at any diamond/A/K river.