Great episode, this season is on an amazing run so far, best string since season 1. Walt is emotional about his guap(shmack shmack). At the end was a threat to Jesse because he told Mike to take the cut from his share, which undermined Walt's authority and his whole stance on the situation. It made him have to give some from his share to show Mike that Walt is still in control. He's completely gone in his delusions of grandeur.
He knows he can't kill Mike, not yet anyway. Mike is too vital in their operation. He's just trying to use everyone as much as he can, and do it as well as he can.
How did no one point out how many variables there are for shit to go wrong with the new cook method? Clearly gonna be part of the downfall.
Also the scarface scene could be seen as a threat to Skyler too.