Bucky and Hawkeye didn't hesitate in fighting her
And what does Stark and the rest letting it "slide" have anything to do with it?
She defected
I would feel some ways about an virtual outsider just coming in and slapping my female teamate, he aint built up the history to put hands on her like that.... That's like someone you just met coming to your house and slapping your female cousin on some she disrespected me type shyt, you really gonna not check that fool in someways?!