Her dad and Jun are treating her like property, and this whole thing is like...weird. It's like the fight is a kind of contract that will let her go from being owned by her father to being owned by Jun. I would be mad as hell, too. Honestly, I think ignoring them was more effective than directly confronting them. It's like she's reminding them that she has a will of her own, and they legit can't handle it.
But...I've honestly wanted her to haul off and punch him in the face since he pulled this BS. I approve.
Punch him again.