@Edalwulf: No, really, Sorawo really is an incredibly selfish and self-absorbed person. The only other person she cares about is Toriko, but even that is solely in the "I want her to like me" sense. That gets emphasized over and over in the novels. She'll happily leave other people to die even when she's completely capable of saving them. And not because she's scared, but rather because she simply can't be bothered to care about anyone who isn't Toriko.
That said, yes, she has perfectly good reason to be scared right now, and she is somewhat, but her real reason for trying to stop things isn't because she's scared. It's because she wants Toriko to forget about Satsuki and focus on her instead. She's jealous, and very determined to ensure that Toriko
does not find Satsuki.