What's happening again? [Every passing second makes her feel more and more uncomfortable, more and more fearful of something she can't put a name to.
..."I believe you. After everything we've been through, I believe you"...a message written in breath..."I'm here to save my best friend"...
She doesn't know why, but as she waits for Lydia to answer, she moves to stand behind her, wrapping her arms around Lydia's shoulders from behind, stooping to rest her chin on one.