Zoom table no reads whatsoever.

standard raise, pewitt calls. I automatically remove 10+ and AK

The flop is perfect for me. I decide to c-bet to hide my hand. Pewit again just calls. Now I am thinking he may hold 9X but a weak one at that. he may have K9 at most but I reckon A9 probably raises in this spot for protection.

The turn card comes the 6. when he just checks again I smell weakness so I bet about 65/70% of pot for value and to keep my hand disguised. When he calls again I firstly think, what does he put me on. I reckon he thinks I am on bluff and I am probably holding AK, AQ or possibly A9. the fact he only calls to me feels like he has to be on 9X but is scared of me holding a higher pair or A9, I feel his range is around 910 9J.

the river is a 3. This is a great card for me as it doesnt change the board. Once he checks the I feel he has given up on the hand. However once he check raises I am like, *** WTF! ***

Looking back the way I have played this hand. (fast an quick) he's obviously assuming I am betting the river. When he raises I am thinking its either a pure bluff because he thinks I have AK and could get me to fold or maybe he hit trip 3s. Either way I win this hand.

I cant' believe what he showed. As it turned out it was a great check by him,

My question is, is this a bad beat or is it a bad call and should I have been able to fold to his raise on the river?