Okay, perhaps I'm reading too much into too little here, but it's certainly psychotically justifiable. Her last shot is in response to Jenna's comment as to the wisdom of bringing aliens aboard. She shows no reaction. It's probably the first time Jenna has spoken in her presence, and she probably realises it won't do any good to make an issue of anything until she's more familiar with the interpersonal dynamics of the group. That was a bit longer than I expected, especially since Cally only appears half way through the episode.
Any comments welcome.