i thought that they had a brother sister relationship, particularly in the fifties. he told his troubles to her and they were very close, but not together as a couple. i know theres the tragic tale of how she came to visit him in graceland after his mother died and she stood hugging him as he sobbed on her shoulder for half an hour. she got married to another man, as he married Priscilla and they were friends up to his death. i think she's still alive.