@ToeSucker Sounds like a rather unique situation!
Try to find compassion amongst the unionising, meticulous note taking, assuming that she wants you fired and other er helpful suggestions given here. She is a human being.
I am sadly unsurprised at how little people (on here) are concerned about this poor woman's emotional wellbeing.
I suspect that she doesnt trust her own emotions and reactions, and needs others to validate them by also being (?overly) emotive. It can be mighty unnerving when one is ultra stressed and others seem relaxed. If may come off as lacking in interest or care about the outcome. This often happens when people come from dramatic, highly emotionally expressive families. Of course it is becauee you have a good degree of emotional control and resilience. I think maybe she sees that as a lack of caring.
For example, I know several people who believe that worrying shows one cares. "If I dont worry then I dont care about X". They typically come from families that are highly dramatic with a lot of "oh my god!!!" type responses to stress.
This is also a psychological tendency especially in generalised anxiety disorder. People with GAD often believe worry = being competent, caring etc. It would also track as she gets upset and tearful/stressed a fair bit.
I am very calm and people have misinterpreted my calmness when in high stress situations as being laisse faire and disinterested. That is so far from reality.
So try to being compassion to her. She clearly has low impulse control (e.g. sexualised talk at work) and possibly really strong beliefs about emotional expression.
Sounds like you are an excellent employee with high stress tolerance and she may find that unnerving. She isnt going to get you fired for not crying at work. Maybe verbalise that you "get" her emotional responses a bit more. That may take off the edge.
Good luck! And look after yourself..