Actors who are lovers in real life are often incapable if playing the part of lovers to an audience. It is equally true that sympathy between actors who are not lovers may create a temporary emotion that is perfectly sincere.
As far as hypnosis is concerned I had a very serious problem when I was in my twenties. I encountered a man who later became the president of the American Society of Medical Hypnosis. He couldn't hypnotize me.
