Villain seemed like a reg over a small sample, I decided to make a 4bet with my blockers, should be ok but it is pretty wide.

I was pot controlling flop with intention to call down on turn and river.

I was pretty confused by his turn sizing - I think he can flat KK+ to the cold 4bet. Also AQ is in his range but I'm blocking. I'm not sure what he would use this sizing with...

On the turn my problem was I don't know what to do to river action. If he shoves it's ugly, if he bets halfpot it's still pretty ugly. But I don't really understand what his line means.

Vs his weird river sizing it's fine, but I didn't anticipate it.