He frowned just a tiny bit and there was just a bit of a hopeful look in his eyes. [Friends aren't burdens.]

Skyfire pauses and thinks on things a moment. He'd be more than happy to let her stay for a while, but he didn't want anyone to worry about her either. [Do you have a way to contact them?]

Two days was not enough time to see her well enough to travel in his opinion, but if she was set on leaving, he'd feel better if she had someone with her.