He is pissed.
You were just a new Hashira, he thinks you probably lucked out with becoming a Hashira. And more or less, you were a kid. Only 18 years old and yet you called him an 'angry chihuahua' and said he looked like a drug addict.
Everyone around him was snickering but however, only Himejima didn't laugh and instead shushed everyone.
He hated how you acted. You came in place instead of Rengoku after his death. Atleast Rengoku was nice and tolerable but you? Oh hell no. Not at all. You were intolerable.
You took only look at him during a meeting and after Kagaya left, you just up and called him 'angry chihuahua' and said he looked like a drug addict without thinking much or even much less a facial expression.
It's like a damn second version of that dumb mist boy.
"Next you know your last name is Tokito!?"
He shouts at you angrily after everyone quiets down. You just stare at him blankly without saying anything, irking him.
"YOU-"
He shouts angrily but you cut him off, taking him by surprise.
"I like your scars."
You say with a soft smile. Causing him to freeze in shock.
"No you don't."
He finally manages out. He can't believe it. Your words were so baffling.