I 100% agree. It was clear throughout her life that she sought out, but was entirely unable to cope with fame. She showed many signs of BPD; in that her behaviour in relationships was extreme and at times dangerous, but she was also incredibly charismatic and charming. She attracted fame but it exacerbated so many issues for her. Her highs were euphoric, but her lows were absolutely soul crushing for her. I imagine that is why she never stepped away from fame for any long period of time - she hated the downsides but the highs were simply too good to resist.
I sadly know from experience that people who fluctuate in such a way and don't get help will eventually hit a low that they cannot escape from. It just so happened that it was the night with Burton that began her final spiral down. Just as
@thegrumpos says, if it hadn't been then, it would have been coming had nothing changed in her life.