[kuro]

The trouble with flat calling is that you still go broke to the hands that have you trounced already (sets/QT) when you push the turn/call down, you give the crafty villain a chance to bluff you off your hand if a scare card hits on the turn/river, and you let vi1lains with hands that aren't giving you any action on subsequent streets without improving a chance to beat you.

Villain may have interpreted your half pot bet as weakness and be trying to test you for the very minimum or be trying to buy a check behind on the turn from you so he has a better shot at having his hand improve. There are a lot more weak hands in villain's range that may take this line than hands that have you crushed.

So I push.