Olivia knew his identity, but she was just one person. There was nothing she could do to change the situation. Even if she killed Wayne, Carathia's assault wouldn't stop.
Arlandia was forced to respond in kind, but fighting violence with more violence wasn't ideal.
She didn't know how Wayne could talk about something like that so casually. She composed herself and asked, "Who are you, really?"
"You just need to provide treatment for me. You don't have to concern yourself with anything else."