It does mention the doctor who was the tragic lost love! But instead she has a new OC boyfriend who has not got much personality except being pleasant and wanting her to open up to him and tell him facts about her backstory.

There were also a lot of moments where it was like -- the author would put some words in Diana's mouth or some thoughts in her head, and I'd sit here unsure whether I should be bristling on her behalf or not, or whether the author was pulling on a documented thing. Like, Diana's friend hands her a stack of nineteenth-century novels about women and their choices and Diana's like "I'm not clever enough to read these" and I'm stuck between '... you really think Princess Di never read Pride and Prejudice?' and 'well MAYBE Princess Di said she wasn't clever enough to read Pride and Prejudice -'