Its hard for me to lay into you when I wouldve played your hand the exact same way on every street.
PREFLOP: Standard

FLOP: Standard

TURN: I love your check, by checking you take away any chance Mike can outplay you off the best hand.

RIVER: Autocall. Mike's hand is still not defined, but your hand is, he knows chances are that you have a marginal holding that you may not be able to call a river raise with, which means mike is probably raising this river with quite a few hands you can beat, He only needs to be bluffraising here a small percentage of the time(approx 12%) to make calling the raise correct given the size of the pot.

As far as should you of checked the river?? Im not gonna let Mike1 check down Kx or worse when I have the nut second pair so I would bet like you did, and Im certainly not gonna let him raise me off this hand on the river given the weird way he played his hand.

I think you played this hand as good as you can play it.