Oh.

He takes her teasing so seriously that she feels a little bad. She thought that he might insist more, make his case for why it should be him and not Ekkehardt, perhaps even tease her back. But instead, he simply looks ready to step aside, no matter how much she's sure that he wants to protest.

Her expression softens. "Well, then... It's a shame that I don't want to sing with him. Let's go." To Héctor, she offers up a hand to help her out of her seat.