I am of an age, ahem, where I remember Alexandra's entry into the RDF quite vividly and the public opinion at the time. She was an absolutely perfect princess. Mastered the language in record time, mastered the knack of dressing conservatively yet smartly, always seemed happy to be wherever she had to be, and just a breath of fresh air at the right time.
But she was a big city girl with a big city job and she married a sweet, snobby stooge who promptly took her out in Bumblef*ck, South Denmark, to live. Probably her only escape was to do her work for the RF. They filled their lives with the usual progression of married couples, had children, etc, which had them occupied for a while, but ultimately they couldn't run from the fact that they were different people with very different goals in and paces of life.
There's a reason that her rebound from McDreary was PartyBoyMartin.
And now Joachim is married to a sweet girl who shares and/or is happy to support his delusions of grandeur, and he learned his lesson and sold off the countryside abode and brought her closer to the capital to live.
And Alexandra finally realised that exchanging a dreary adult man for an overgrown teenager was not quite what she expected, and now lives alone. She strikes me as someone who can be (too) exacting and demanding and who needs a partner that can be a true partner to her. And who can hold his own against her.
Brilliant insight, BubbaGumpShrimp