Cosima, though mildly startled, says, "Hey... thanks. They're taking good care of me here, I don't even feel bad most of the time. But back home, I was working on trying to figure out how to make our sisters better. Whenever I get back, I'm sure I'll pick up where I left off."

If she goes back, but she's not going to say it that way in front of Sarah. Of course they'll go back; they have to, so they will.