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It's a check-fold to a large bet on the Flop and Turn/call small bets, check-call River.

Once you're in the pickle you're in, just Fold.

The reason why being very Tight Passive is best in this situation is because it's the kind of situation where you're either going to win a little or lose a lot due to having the worst position. It's not like you have a set either.

The situation would be completely different if you were on the button, but when you're in EP just get out of there while losing the minimum amount.