“She doesn’t want them to die”
That is not her decision to make for them.
Also, she just said he was “different”. I didn’t sense any indication of her supposed love for him.
She didn’t even have a change of expression or any internal monologue of this supposed love. Hell even throughout the fight where it should be appropriate to to at least have internal monologue.
I really doubt her love for him.
Her not wanting to kill is the only saving grace of rhino’s character but she doesn’t have the right to stop fighters from fighting. She is literally robbing them of their passion.