I am UTG+1 with KK. I make my standard raise to $10. Button ($183) calls and we're headsup. Button seemed loose with fairly weak postflop play.
Pot is $23. Flop comes
[3d][2c]. I bet $18. He calls. I put him on either a lower overpair or something like AT.
Pot is $59. Turn is
. I check. He bets $30. I call.
Pot is $119. River is
. I check. He moves in for $123.
What the hell? He doesn't have the 4. So explain his bet to me.