I've given a lot of thought about the hand that made me bust the EPT.

I was playing quite tight at that moment, and the other guy was quite active and making some moves. Per example he CC+4b a squeeze, called a cold4b IP and checked behind + raised CB turn and shoved river with AK on QT874; he bet and check/raised with QJ on KJx8 and so on. Aswell he was pretty tilted at that moment.

Starting the hand i got about 18k (45bbs) with blinds 200/400 and the other one has about the same. 

I raise MP w/KQs and the guy calls on CO, everybody else folds. 

Flop is KJ7 and i check, and he checks behind. At that moment i check for keeping pot control cause the guy is pretty active. 

Turn is a 5 which opens my flushdraw. I bet 1.1k into 2.6k and he raises to 2.4k. At that point i put him basically on a hand like QT; AJ, JT, AT with flushdraw, AQ... and a set of fives. I'm sure he doesn't slowroll any big hand on flop. After that i decide to make it 6k leaving about 12k behind thinking he might still shove those hands cause he's active. He ends up calling.

River is a J and i check/call and he shows 55.

Maybe best option is to call he's raise on turn and check/call river and leave me with about 12k after the hand if i lose which still are 25bbs of the new level.