Will Maksim Chmerkovskiy and Vanessa Lachey switch 'DWTS' partners after reported feud? (Exclusive)

Looks like Dancing With the Stars partners Maksim Chmerkovskiy and Vanessa Lachey will remain professional despite claims they're not getting along. 

On Wednesday, Chmerkovskiy apologized to Lachey on Twitter, after he skipped Monday night's DWTS due to what co-host Erin Andrews called a "personal issue." A source later told ET that he actually refused to rehearse with Lachey this past week due to issues between the two, leading dancer Alan Bersten to fill in for him. 

But a source tells ET that despite all the drama, Chmerkovskiy and Lachey will continue to dance together on the hit ABC show.

"The producers wouldn't switch partners because two people aren’t getting along, it’s just par for the course," the source says. "Drama is expected and part of the show. When you train with someone for so many hours so intensely, tensions can run high -- for better or worse. In this case, the intensity led to bickering."

14 PHOTOS
Maksim Chmerkovskiy and Vanessa Lachey together
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Maksim Chmerkovskiy and Vanessa Lachey together
DANCING WITH THE STARS - 'Episode 2502A' - With the first elimination having taken place on Monday, the 12 remaining celebrities ready themselves for one of the hottest nights in the ballroom - Latin Night, on 'Dancing with the Stars,' live, TUESDAY, SEPTEMBER 26 (9:00-11:00 p.m. EDT), on The ABC Television Network. Each couple will perform a samba, rumba, cha cha, Paso Dobl� Argentine Tango or salsa, vying for America's vote. At the end of the night, the second elimination of the season will take place. (Eric McCandless/ABC via Getty Images) MAKSIM CHMERKOVSKIY, VANESSA LACHEY
DANCING WITH THE STARS - 'Episode 2502A' - With the first elimination having taken place on Monday, the 12 remaining celebrities ready themselves for one of the hottest nights in the ballroom - Latin Night, on 'Dancing with the Stars,' live, TUESDAY, SEPTEMBER 26 (9:00-11:00 p.m. EDT), on The ABC Television Network. Each couple will perform a samba, rumba, cha cha, Paso Dobl� Argentine Tango or salsa, vying for America's vote. At the end of the night, the second elimination of the season will take place. (Eric McCandless/ABC via Getty Images) TOM BERGERON, VANESSA LACHEY, MAKSIM CHMERKOVSKIY
DANCING WITH THE STARS - 'Episode 2502A' - With the first elimination having taken place on Monday, the 12 remaining celebrities ready themselves for one of the hottest nights in the ballroom - Latin Night, on 'Dancing with the Stars,' live, TUESDAY, SEPTEMBER 26 (9:00-11:00 p.m. EDT), on The ABC Television Network. Each couple will perform a samba, rumba, cha cha, Paso Dobl� Argentine Tango or salsa, vying for America's vote. At the end of the night, the second elimination of the season will take place. (Eric McCandless/ABC via Getty Images) VANESSA LACHEY, MAKSIM CHMERKOVSKIY
DANCING WITH THE STARS - 'Episode 2502' - The 13 celebrities dance to some of the most classic ballroom styles that everyone knows and loves, as Ballroom Night comes to 'Dancing with the Stars,' live, MONDAY, SEPTEMBER 25 (8:00-10:01 p.m. EDT), on The ABC Television Network. Each couple will perform timeless favorites, including a quickstep, waltz, tango, foxtrot or Viennese waltz, vying for America's vote. At the end of the night, the first elimination of the season will take place. ABC/Eric McCandless / ABC Via Getty Images) VANESSA LACHEY, MAKSIM CHMERKOVSKIY
DANCING WITH THE STARS - 'Episode 2502' - The 13 celebrities dance to some of the most classic ballroom styles that everyone knows and loves, as Ballroom Night comes to 'Dancing with the Stars,' live, MONDAY, SEPTEMBER 25 (8:00-10:01 p.m. EDT), on The ABC Television Network. Each couple will perform timeless favorites, including a quickstep, waltz, tango, foxtrot or Viennese waltz, vying for America's vote. At the end of the night, the first elimination of the season will take place. ABC/Eric McCandless / ABC Via Getty Images) VANESSA LACHEY, MAKSIM CHMERKOVSKIY
LOS ANGELES, CA - SEPTEMBER 18: TV personality Vanessa Lachey (L) and dancer Maksim Chmerkovskiy attend 'Dancing with the Stars' season 25 at CBS Televison City on September 18, 2017 in Los Angeles, California. (Photo by David Livingston/Getty Images)
LOS ANGELES, CA - SEPTEMBER 18: TV personality Vanessa Lachey (R) and dancer Maksim Chmerkovskiy attend 'Dancing with the Stars' season 25 at CBS Televison City on September 18, 2017 in Los Angeles, California. (Photo by David Livingston/Getty Images)
DANCING WITH THE STARS - 'Episode 2501' - 'Dancing with the Stars' is back with a new, dynamic cast of celebrities who are ready to hit the ballroom floor and celebrate the show's landmark 25th season. The competition begins with the two-hour season premiere, live, MONDAY, SEPTEMBER 18 (8:00-10:01 p.m. EDT), on The ABC Television Network. (Eric McCandless via Getty Images) PETA MURGATROYD, NICK LACHEY, VANESSA LACHEY, MAKSIM CHMERKOVSKIY
DANCING WITH THE STARS - 'Episode 2501' - 'Dancing with the Stars' is back with a new, dynamic cast of celebrities who are ready to hit the ballroom floor and celebrate the show's landmark 25th season. The competition begins with the two-hour season premiere, live, MONDAY, SEPTEMBER 18 (8:00-10:01 p.m. EDT), on The ABC Television Network. (Adam Rose/ABC via Getty Images) PETA MURGATROYD, NICK LACHEY, MAKSIM CHMERKOVSKIY, VANESSA LACHEY
NEW YORK, NY - SEPTEMBER 06: Vanessa Lachey and Maks Chmerkovskiy pose at ABC's 'Dancing with the Stars' Season 5 cast announcement event at Planet Hollywood Times Square on September 6, 2017 in New York City. (Photo by Bruce Glikas/Bruce Glikas/Getty Images)
GOOD MORNING AMERICA - The cast of Season 25 of 'Dancing with the Stars,' are announced live on 'Good Morning America,' Wednesday, September 6, 2017 on the ABC Television Network. (Photo by Lou Rocco/ABC via Getty Images) MAKS CHMERKOVSKIY, VANESSA LACHEY
NEW YORK, NY - SEPTEMBER 06: (L-R) Vanessa Lachey, Nick Lachey, Peta Murgatroyd and Maks Chmerkovskiy pose at ABC's 'Dancing with the Stars' Season 5 cast announcement event at Planet Hollywood Times Square on September 6, 2017 in New York City. (Photo by Bruce Glikas/Bruce Glikas/Getty Images)
DANCING WITH THE STARS - VANESSA LACHEY AND MAKSIM CHMERKOVSKIY - The celebrity cast of 'Dancing with the Stars' are donning their glitzy wardrobe and slipping on their dancing shoes as they ready themselves for their first dance on the ballroom floor, as the season kicks off on MONDAY, SEPTEMBER 18 (8:00-10:01 p.m. EST), on the ABC Television Network. (Craig Sjodin via Getty Images)
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Maksim Chmerkovskiy Apologizes to Vanessa Lachey For 'DWTS' Absence

The source also claims Chmerkovskiy is now in "full blown crisis management mode."

"He realizes that he messed up," the source claims. "Vanessa isn’t afraid to stand up to him. She’s a very strong woman."

"He’s on thin ice so you can expect that he’ll be on his best behavior from here one out," the source adds.

However, a second source tells ET that Chmerkovskiy remains in good standing with the show. 

"He’s one of the most popular pros on Dancing with the Stars," the source notes. “Maks and Vanessa are continuing to dance together and hopefully they’ll make it all the way to the finals. At the end of the day, Maks is always a professional. This is his job. He just needed personal time away not related to Vanessa.”

A DWTS spokesperson previously told ET, "Maks and Vanessa are returning to rehearsals and will be dancing together on next week's show."

22 PHOTOS
Celebrities you forgot competed on 'Dancing With the Stars'
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Celebrities you forgot competed on 'Dancing With the Stars'

Kim Kardashian (Season 7): 11th place

(Craig Sjodin/ABC via Getty Images)

Tucker Carlson (Season 3): Last place

(Photo by James Sorensen/ABC via Getty Images)

Billy Ray Cyrus (Season 4): 5th place

(Photo by James Sorensen/ABC via Getty Images)

Paula Deen (Season 21): 9th place

(Craig Sjodin/ABC via Getty Images)

Pamela Anderson (Season 10): 6th place

(Photo by Craig Sjodin/ABC via Getty Images)

David Hasselhoff (Season 11): Last place

(Photo by Bob D'Amico/ABC via Getty Images)

Jerry Springer (Season 3): 5th place

(Photo by James Sorensen/ABC via Getty Images)

Martina Navratilova (Season 14): Last place

(Photo by Bob D'Amico/ABC via Getty images)

Joey McIntyre (Season 1): 3rd place

(Photo by Bob D'Amico/ABC via Getty Images)

Nancy Grace (Season 13): 5th place

(Photo by Craig Sjodin/ABC via Getty Images)

Shannen Doherty (Season 10): Last place

(Photo by Craig Sjodin/ABC via Getty Images)

Kate Gosselin (Season 10): 8th place

(Photo by Craig Sjodin/ABC via Getty Images)

Denise Richards (Season 8): 12th place

(Photo by Craig Sjodin/ABC via Getty Images)

Penn Jillette (Season 6): Last place

(Photo by Bob D'Amico/ABC via Getty Images)

Heather Mills (Season 4): 7th place

(Photo by Liam Daniel/ABC via Getty Images)

Wayne Newton (Season 5): 10th place

(Photo by Craig Sjodin/ABC via Getty Images)

Priscilla Presley (Season 6): 8th place

(Photo by Bob D'Amico/ABC via Getty Images)

Debi Mazar (Season 9): 12th place

(Photo by Craig Sjodin/ABC via Getty Images)

Bill Nye (Season 17): 11th place

(Photo by Craig Sjodin/ABC via Getty Images)

Geraldo Rivera (Season 22): Last place

(Photo by Craig Sjodin/ABC via Getty Images)'n

Steve Wozniak (Season 8): 10th place

(Photo by Craig Sjodin/ABC via Getty Images)

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On Wednesday, Chmerkovskiy tweeted that he took full responsibility for missing the show, though didn't apologize for his reported behavior towards Lachey. 

"As you are all aware, I had to leave the show last week to take care of some personal issues," he wrote. "I take full responsibility for my absence... and want to apologize to my partner Vanessa. We are both looking forward to dancing for our fans next week!"

Meanwhile, Lachey thanked Bersten on Instagram, and also said she couldn't wait to rehearse with Chmerkovskiy again.

A source previously told ET that the pair has been faking their seemingly close relationship.

"They're both super competitive and know how to 'turn it on' as performers," the source claimed. 

13 PHOTOS
'Dancing With the Stars' season 25 cast
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'Dancing With the Stars' season 25 cast

Sasha Pieterse

(Photo by D Dipasupil/FilmMagic)

Terrell Owens

(Photo by J. Countess/WireImage)

Barbara Corcoran

(Photo by Ilya S. Savenok/Getty Images for T.J. Maxx)

Vanessa Lachey and Nick Lachey

(Photo by Michael Tullberg/Getty Images)

Debbie Gibson

(Photo by Gabe Ginsberg/FilmMagic)

Drew Scott

(Photo by Noel Vasquez/Getty Images)

Frankie Muniz

(Photo by Adam Bettcher/Getty Images for Starkey Hearing Foundation)

Jordan Fisher

(Photo by Presley Ann/Patrick McMullan via Getty Images)

Nikki Bella

(Photo by Jim Spellman/Getty Images)

Derek Fisher

(Photo by Gabriel Olsen/WireImage)

Lindsey Sterling

(Photo by Josh Brasted/FilmMagic)

Victoria Arlen

(Photo by Phillip Faraone/Patrick McMullan via Getty Images)

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