I haven't seen the entire series yet, and missed the 1st episode. So, the thing is is that Hannah is having an affair the whole time with Christie. It's not a physical affair, it's an emotional affair. And, while I'm not an expert in this area - from what I've read is that emotional affairs are much more damaging than a short physical affair. No one wants to be betrayed physically or emotionally. Hannah is letting her emotional affair continue by working with, and continuously confiding in Christie. It's just as inappropriate as physical cheating. Hannah should talk with a female therapist. I think everyone in this series needs therapy! :-D.
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