He is very difficult to communicate with unless I mimic his style and language. That takes sooo much extroversion, attention, and effort for me to do. Two weeks now I've been so drained that by Friday I can't come in, instead sleeping for 26 hours or so straight. That's VERY unusual for me, and unprofessional besides. And I have other areas of my life that desperately need my attention and energy!
I'm trying to apply the Meyers-Briggs Type Indicator system to this problem, and it's shown me something important -- he's almost definitely an ESTJ (The Manager). That's right, my exact opposite. (I'm INFP (The Idealist)) Unsatisfying and draining to work with even when we are working well together.
I know there are some good tools out there for how to communicate with different types; I'll be looking those up next. I'm open to any ideas you have as well.
Such a tremendous learning opportunity. But I have to survive it.