I think we are on the same plane with this, just stating it in a different way. I'm not saying she was " crazy". We don't know the severity of her Manic Depressive illness, true. We do know that people with BP disorder are not able to leave off their medication safely without medical supervision or a replacement medication once it has been prescribed and started.
I'm saying she was likely more vulnerable because there is a good chance that her judgment may have been impaired. Manic depressive illness is a serious mental disorder which requires lifelong medication.
When a person who is diagnosed as BP is prescribed medication by their psychiatrist and they stop taking the medication, they are susceptible to experiencing the onset of either manic or depressive episodes, or rapid cycling.
When the person has an altered mental status, either mania, hypomania or depression, they are thinking less rationally than they would be if they were taking the medication, but they usually don't realize it. Most BP disordered people feel better off their meds until they reach the point where they cannot manage the symptoms on their own. That doesn't mean that their judgment skills are the same as if they were on their medication.
All I am saying is that if she was approached by Hilton, she may not have had the same usual restraint or judgment skills in place at that time, thus may have been more vulnerable to his ruses. That would mean that she may fall into the more vulnerable category rather than less likely victim status that LE is assigning to her.
LE is most likely looking at it backwards, unless there is evidence which hasn't been released.