No need to surprise that these two long time friends are turning foes.
See how quickly Gullu went back and tried to pacify Sam, he was litterly seen begging, forcefully tried to hug her, she very cunningly sheded tears.. You think she could shed tears that easily. No she won the first battle. She is gearing up to take him on head on.
One more act of gajni panti or Mr. India panti with Sam and he knows that she could single handedly tarnish whatever fan following left of Mr. Gullu in a heart beat.
Remember his piercing looks at when she entered the house wondering why Bigg Boss why her. Why are you pitting her against me showed a fear that is keeping him at bay, wondering around like a lost ..., spewing venom against Kari, bitching with everyone as soon as he gets a chance. No one like Puneet is around to knock some sense into this brainless, self appointed fixed winner.