Kim Zolciak and Kroy Biermann Not Getting Along 'For a While,' Financial Issues 'Broke' Relationship: Sources

The reality star and former NFL player haven't been getting along for a while and their financial issues didn't help.

Kim Zolciak-Biermann and Kroy Biermann put on a "united front" for everyone around them, but things haven’t been going well for a while and their growing financial issues became too much, ET has learned. 

Sources who know Kim and Kroy were caught off guard by the divorce filings.

"This is a complete shock and no one saw this coming. Kim and Kroy have always come off as 'couple goals' and seemed so in love," one of the sources tells ET.

On Monday, in documents obtained by ET, it was revealed that Kroy and Kim each filed for divorce from one another in separate petitions on May 5, after 11 years of marriage. According to the docs, obtained by ET, the two both state that they are in a "bona fide state of separation," and have been since April 30.

In the docs, filed in Georgia's Fulton County, Kroy and Kim both state that their marriage is "irretrievably broken with no hope of reconciliation."

A second source says, "Kim and Kroy haven't been getting along for a while. Although publicly they showcased a united front, it wasn't like that behind closed doors. The financial issues they have really started to add up and that is what ultimately broke the relationship."

The sourced adds that "Kroy took on more of a manager role for the family, handling business dealings and finances and Kim felt he led them down the wrong path. Kroy feels like Kim's spending habits and financial priorities contributed to their issues."

The filing comes two months after the couple's home in Alpharetta, Georgia, was taken off of the auction block due to foreclosure. The law office of Brock & Scott, PLLC said the auction of the couple's sprawling six-bedroom, nine-bathroom home was canceled on Feb. 22. The law office refused to provide a reason for the cancellation, but said no new date has been set for the sale of the home. 

According to a Fulton County notice of foreclosure posted in February, Truist Bank was set to auction off the mansion on March 7 at the Fulton County Courthouse. According to the notice of foreclosure, as seen by ET, the foreclosure stems from Kim and Kroy defaulting on the $1.65 million loan they took out to buy the home on Oct. 23, 2012.

An additional source tells ET, "There's no way Kim would do something like this just for a stunt or for money."

The pair's whirlwind romance began when they met in 2010 at a charity event. At the time, Kroy was playing for the Atlanta Falcons. The couple's love was documented on The Real Housewives of Atlanta and on their spinoff show, Don't Be Tardy -- which featured their lavish Georgia wedding.

Together Kim, 44, and Kroy, 37, share Kroy, 11, Kash, 10, and twins, Kaia and Kane, 9. During their marriage, Kroy adopted Kim's oldest daughters, Brielle, 26, and Ariana, 21.

TMZ was first to report Kroy and Kim's breakup.