from bustybbwlovers link above;
Roberta’s relationships with men were of a brief and turbulent nature, characterized by a repeated pattern of seeking deep emotional attachment with men who merely used and discarded her. She claimed to have had affairs with an actor from the film Planet of the Apes and a faded television star who was to later die in mysterious circumstances in 1978. While few of her relationships lasted more than a couple of months, she did enjoy a longer one with the writer Gustav Hasford, author of The Short-Timers and inspiration for the film Full Metal Jacket.
Charlston Heston and Bob Crane ?
thats my guesses.