my big sister peggy has kept some of her needlework, angels for her grandchildren. the passion of a lifetime, we watched as that passion faded. >> these kind of to me shown the progression of the disease. >> reporter: over the years, from this to this. they are gifts of love and love is who we are. >> she didn't know who i was. that was a terrible time. >> reporter: saul and rita married 63 years. as he began to lose rita to alzheimer's saul couldn't bear it. but he wouldn't let go. so he started getting into bed with her at the nursing home outside boston. >> she became a new woman. she knew who i was. she could talk. and smile, laugh. i love you very much. >> reporter: terry moran, abc news. >> it certainly is a very emotional thing to watch.