There was a lot of hypocrisy about this - they sang the famous song, but he got what appeared to be Alzheimers so she dumped him and in the divorce complaint stated she didnt want the burden of taking care of him but gave interviews blaming him for being distant etc....turns out he needed a meds change but the damage was done.
so change the lyrics to:
love, love will keep us together,
unless you get Alzheimers....