That is quite profound. And how terrified Diana must have been for people to get to know her well.
I think Diana had problems with relationships with other people generally.
I think she had problems with boundaries, as I think she was far too familiar with household servants, like Burrell, and other staff, like her protection officers, particularly Manakee, and people like Simmons who performed work for her and was thus only a quasi-friend. For the present I accept she wasn't having an affair with Manakee, but was just too familiar, and it was that over-familiarity that got him sacked.
She crossed invisible boundaries, but it's not that simple. She seems to have been aware the boundaries were there in some sense, because she knew she held the upper hand and could control the relationship and cut those people off by freezing them out, refusing to take their calls, or changing her phone number. She invited these people in and befriended them to a degree I think was quite inappropriate, lulling them into a false sense of security. By crossing these boundaries she was being selfish, I think, and I'm not entirely sure she wasn't knowingly taking advantage of the situation, doing it because she wanted playmates and knew she made the rules and could end it when they had ceased to amuse her because these people had no power.
It's complicated. Diana was very complicated. And maybe she behaved like that because she didn't have many real friends. Even with those who could be called real friends, it seems she didn't tell them everything. She compartmentalised people and parts of her life.
I could understand Diana finding it hard to sort out boundaries with people very early in the marriage but if she couldn't get on top of it after 15 years, and life experience had not enabled her by then to understand why certain relationships with equals (e.g. Khan) would not work out despite her very best efforts, I think Diana was destined to be lonely unless she took up with people like Dodi Fayed.
If she had the insight to be aware that though the general public who did not know her adored her but family and friends who really knew her rejected her, and she couldn't work out why, and she was hurt by it, I do pity her, because I don't think she was likely to do anything to help herself understand why and improve things. I think she would have needed professional help to fix this, not just chats to Rosa or her few other friends. They were not trained to help someone as complex and damaged as Diana.
Diana spoke on the Squidgygate tape about the Queen Mother often watching her with a look Diana found hard to describe but called a mixture of "interest and pity". I think that sums up what I feel about Diana, too: interest and pity.