The Backstory for Maksim Chmerkovskiy's 'Dancing with the Stars' Fumble

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Kirstie Alley and Maksim Chmerkovskiy were happy for their 21 out of 30 score on Monday night, but they still were a little dazed by the spill they took on stage when ET correspondent Chris Jacobs got the stars to dish on the misstep backstage.

"Nobody's taking my spot," said Maks, who dropped Kirstie during their dance. Maks explained that "[his] thigh just gave out."

"I thought he was being funny," said Kirstie, who grew concerned when she realized that it was not a joke.

Maks confirmed to Chris that he will not be taking any days off in spite of his unspecified injury, saying, "Whatever it is it's going to have to wait until the end of the show."

In spite of the intense competition the dancers had just gone through, most of them were still reeling over Carrie Ann Inaba's live television engagement on March 31.

"I had my suspicions," said Carrie, whose mouth was agape when her boyfriend, Jesse Sloan, dropped to one knee on "Live! with Regis & Kelly" last week.

"Actually I worked with my old publicist," said Jesse, explaining how he came up with the idea for the surprise proposal. Jesse said that he bought the ring in February and "it was killing [him]" to keep it a secret.

"Welcome to the club, girl!" said Wendy Williams, who has been married to Kevin Hunter for twelve years.

Kendra Wilkinson said that she caught the proposal on TV by accident while getting her hair done. "I got the chills because I know how it feels," said Kendra, who married Hank Baskett in 2009. "That moment feels like an eternity, but it's one minute. I mean, it's just amazing."

"Oh my God, I'm so happy for her," said Karina Smirnoff, who got engaged to Brad Penny last year. "To get to that moment where you officially declare your love for each other - it's just priceless."

Watch a new "Dancing with the Stars" Tuesday on ABC.