It is a strong possibility that she does have the histrionic personality. She is exhibiting a few of the traits, but are they more pronounced now that she's in crisis? Do you recall if something happened to her as a child or young adult? Are her parents the type of people that didn't pay her any attention or affirmation?
Miracles do happen and who knows...living on her own w/o you there to rescue her, just might be what she needs.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
