History
Diane was the wife of Brian Kingston, an old friend of Eric Payne and a comrade in arms during the Vietnam War where Brian lost his leg. When a remorseful Eric came to see him, Brian and his wife Diane welcomed him, but he became envious of the good life Brian had earned and walked away. Diane told her husband that he shouldn't let him go because she had noticed Eric's desperate look. Brian tried to stop him but couldn't because Eric teleported to the Negative Zone.