(CNN) On Thursday, Madeleine Westerhout, personal assistant to the President of the United States, was forced to resign in the wake of the revelation that she had talked about Donald Trump's family in an off-the-record dinner with reporters.

Westerhout had worked hand-in-glove with Trump -- her office was right outside the Oval -- since shortly after he was elected President, making her one of a handful of aides who had served under Trump for the duration of his term.

And now, she is out. Because, reportedly, a journalist at the dinner broke the "off the record" terms and told the White House what Westerhout had said about the first family. (CNN was not among the news organizations represented at the dinner.)

Now, we don't know what exactly Westerhout said -- and we may never know -- only that she shared what one person described as "intimate" information about the family, which, candidly, could mean almost anything. (One man's "intimate" detail is another man's mundane fact.)

But her removal is a reminder that if you stay in Trump's orbit long enough, he will turn on you. He demands and expects total and complete fealty from those who work for him but doesn't even pretend it's a two-way street. You will give him your loyalty and life; he will not reciprocate. Them's the rules.

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