Originally Posted by
Jaguar55 
Why doesn't he lash out at any of the other people in his life?
Because he's not as out of control as he pretends to be.
He's learned that lashing out at you gets him the reaction that he wants, so he continues to do it, because it keeps you "in line" and by his side to enable him, no matter how badly he treats you.
Sorry if that sounds harsh, I don't mean it to be.
I myself was in that exact position as well, up until around this past Christmas holiday.
I'd suggest reading this thread, from what you've described, I think you'll find some useful information there, and certainly you'll identify with it a lot, because I am identifying with your story, and this thread describes my life with him:
http://www.soberrecovery.com/forums/...-chapters.html 