If you thought KK was good you probably should've raised again preflop. If you thought he had AA then I guess you have to fold on the flop, but you played it a little passively for my liking. I think once you merely call the re-re-raise, you need to be looking to set up on the flop or fold your hand. Otherwise, I like to put in one more raise preflop; you could've made it 25 more or so to go, and then safely folded if he came back over the top.
Monk
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