It is good to read your post emphasising that OCDs can usually be stopped by changing meds from DAs to Levadopa. People in the throes of the side effects need to be reassured that their Parkinsons symptoms can be well-controlled by other drugs and the hypersexuality etc can be overcome.
The problem is getting them to accept it is a problem!
As for the perverse demands, I am reminded of Jo Brand saying that when a partner told her he had always fancied trying anal sex, she told him to turn over and pass her a hairbrush telling him, "we'll see how you get on".
I am flattered by your interpretation of my screen name!
I chose it in admiration of the three ladies well past their sell- buy date in the TV series "The Golden Girls"!
Despite all the challenges of old age, they put up a tremendous fight to enjoy life, have adventures and care for each other.