Actually, that is the way I tend to write. Read some of my posts here. It's one of the reasons I received the promotion at work; my written skills.

I think she is just succinctly stating a new boundary. I waited 1.5 hours before posting this and 2 hours to send my reply so that I was responding, not reacting:

I am angered as I do not see how your curt reply was in my best interest. It feels punishing, but I suppose you were simply stating your boundaries and I will abide.