Witz...
For what its worth...I kinda sorta know what you mean about your adult daughter "provoking." I see this with- my difficult child at times. However, this word "provoking" ...just doesn't sit well with me with reference to abuse. It just is never, ever, ever, never, no way, no how, under any and all circumstances...with the small/tiny profoundly rare remote and highly unlikely exception of a matter of life and death...going to be okay for a man to hit a woman/child (or really anyone!). It's just NOT okay, not not not...no way acceptable.
I do believe your daughter should "hear" that it is NOT okay, that she is worth more and should ALWAYS know that she has safe places to get to. I also strongly believe in providing therapy for people who need (and especially want) it...for me, it provides HOPE for better decisions. But right now, I think the emphasis needs to be on information and safety.
She may not want to hear it and I question whether you should rip your soul out telling her this repeatedly (I like what you said about not jumping in where angels fear to tread), but, due to the extreme risk of safety here, I think it is probably very important that she has this basic information (phamplets, etc.) available to her at all times.
With creativity, I have found ways to provide my difficult child with information she needs and I'm sure you will be able to do this as well.
Perhaps for your daughter's birthday or for the holidays you should provide her with books or little trinkets that might boost her self esteem.
I'm very sorry for all this emotional pain. I recognize how very difficult this has been for you.