Cynthia is about to respond when she looks at Sollux and sees his face.

"Hey, are you okay?" she asks, concerned. She hopes he doesn't dislike the grilled cheese. Oh god, what if he's allergic to it? Do allergies work the same way for aliens? Do aliens even have allergies? No, wait, he wouldn't have that reaction if it were an allergy, would he?

She tries to ground herself before she starts panicking about something nonexistent. He's totally fine. ...Right?