Totally bizarre, but if she is in high work mode she might just be in this default pattern of deciding and controlling and optimizing and can't turn it off. If it's out of character and you are close I might make a joke of it.
This is a good point that had not crossed my mind.
She's also feeling a tiny bit left out.
We would have happily deferred getting together for a month (the time period she said she would be busy), but she was opposed to that idea (probably trying to be nice). But you are right, she may still feel a tiny bit left out.