There was coverage of a lesbian couple dealing with Alzheimer's disease in the HBO Documentary 'The Alzheimer's Project' in the 'Caregivers' episode.
You can get the link to watch the video at this site: http://www.hbo.com/alzheimers/the-films.html
You can get the link to watch the video at this site: http://www.hbo.com/alzheimers/the-films.html