John Cena Apologizes After Nikki Bella Reveals Her Family Is ''Terrified'' of Him & ''Walk on Eggshells'' Over His House Rules

John Cena admits he's "hard to live with."

On the series premiere of Total Bellas, Nikki Bella's family moved in with her and John in order to help her recover from neck surgery. But when Brie Bella and Daniel Bryan, along with the Bellas' mom Kathy and their brother JJ, move in they're forced to obey the house rules.

So when the house rules get to be a little too overwhelming, Brie and Daniel contemplate moving out. That's when Nikki informed John that her family is "terrified" of him and "walk on eggshells" around him.