This happened to a very dear friend of mine. His wife had severe Alzheimer's disease. She was in a locked unit in a nursing home. He met someone and they fell in love. They eventually moved in together and had a "blessing" ceremony, but did not get married until his wife died. He still visited his wife as before, cared for her and his new love helped. It is really hard, but everyone involved was supportive of the new couple. They are now in their 90's and still going strong!
