I agree, but I also think Yana only recognized Oriana's Acting because Yana is also Acting (something having to do with ignoring or pretending to ignore the sexual tension / mutual attraction between her and her guard guy). The way she said that line so knowingly felt like it must be (also) a comment on her own situation. I think her face looks a little too "conspiratorial" (like "between you and me, from one actor to another") and then "sad" in the two panels where she's saying that, for it to just be a comment on Oriana.