I have to agree with an earlier comment that Meghan is, and has been, making it up as she goes along.
I think she aspired to be like Angela of Liechtenstein, even going so far as to copy her dress (see below), but when she realised she was out of favour with so many, and that there was no chance of her ever becoming Queen, she decided to turn the tables and deliberately set about making a mess of things. I honestly believe she attended the solo event with the Queen looking a mess, and acting drunk, on purpose.
Something else I believe: She and Harry got married in Africa and had to quickly get married again in the UK as she was "pregnant" (only, she wasn't - that's what she told him).
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