I honestly cannot think of a worse way to play this hand. SRSLY. I'm sitting here trying to think of a worse way.

Hero may have been able to get away when villain raised on the flop or the turn.

Hero also should be very unlikely to commit ALL his chips with top pair top kicker. Sure we want to get the maximum possible value, but an 85bb stack is NOT the kind of stack we want to get it in with against an unknown with only top top.

What's worse is the 2 pair you sorta kinda maybe caught up with that was in his range was 78 and K7 and neither make sense for our opponent.

His line was pure value, I'm willing to bet he popped a boner when you shoved.