"Don't be sorry," she says, smoothing a hand through his hair. If she were Magnus she could fix this right up, but she doesn't have magic powers and she can't exactly draw runes on him, so he'll just have to ride it out. Or she could call Magnus, but she thinks it could lead to awkward explanations and maybe Billy would be embarrassed.

"You'd still be sick later though," she points out. Turning into Shazam might stop it now but it's only delaying the inevitable. "You might as well get it out now." Maybe her words are magic because he throws up again, and Isabelle leans against the doorway, considering.

"Do you want me to go? I can stay obviously, but I know some people are weird about being sick in front of people." She doesn't mind, she's certainly seen worse, but she doesn't want him feeling awkward around her, either.