Some 30 to 35 years ago, my wife who is now 65 was severely beaten by closed fist and foot by her former husband.
In 2004 her first neurologist first suspected the above while ruling out AD, and ordered an MRI. With the results of the MRI, he recanted and came in with the diagnosis of AD, stating that it was very early. My wife withheld knowledge of the beatings from him.
Since then, we switched to a different neurologist who is geographically closer to us, confirmed MCI, and who had us see a neuropsychologist. After the first visit with both of us present, he said that she had been masking AD for some time with high intellect and charm. As a silent observer, I sat there and watched her skew her MCCI responses. After the second visit without my presence, but with another doctor, she recounted the beatings. His diagnosis was that while the trauma caused by the beatings did not cause the AD, it without a doubt did cause the percipitous drop from MCI in early 2005 to stage 6 now.
My questions to Snowy and others is how do I deal with the anger and accational rage that I feel toward Mr. ex? 
I can deal with him on an intellectual level, but not on an emotional level. What and/or how much do I tell my 33 year old step daughter with whom I have finally achieved normalcy and bond? 