Anna Chapman, the former Russian spy kicked out of the U.S. in 2010, walked out of an interview with NBC News' Richard Engel after she was asked about a proposal of marriage she had made to NSA whistleblower Edward Snowden.

According to Engel, Chapman had told NBC that she would not discuss her private life, and wanted instead to talk about her new television show.

Engel asked about her proposal anyway, and a visibly uncomfortable Chapman told Engel she would not discuss it and asked for the question to be cut. A few moments later, she ended the interview. Engel told the Today Show that he had only spoken to the spy for 5 or 6 minutes.

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Chapman shot to international fame after her arrest in 2010, with nude photos adding fuel to rumors that she was acting as a "honey trap" in the U.S. She returned to Russia after a prisoner swap between Russia and America that was reminiscent of the Cold War era.

Since returning to Russia she has been a celebrity, appearing on television and modeling for men's magazines. Rumors even surfaced that she was having an affair with Russian President Vladimir Putin.

While Snowden was trapped in Moscow's Sheremetyevo Airport in July, Chapman logged into her rarely used Twitter account and tweeted:

Snowden, will you marry me?! — Anna (@ChapmanAnna) July 3, 2013

The tweet was retweeted almost 3,000 times, and the Kremlin told reporters that it had no idea if Chapman's message was sincere or a joke. It's unclear why the question about Snowden upset Chapman so much, but the video does show Engel asking a number of questions about the former spy's personal life despite her earlier request.