Although the details of her departure from the house still remain largely unexplained, Big Brother host Julie Chen says Chima Simone gave the show's producers no choice but to remove her from the competition.

NOTE: The following contains significant Internet live feed spoilers that will not be televised until a future Big Brother broadcast.  Please stop reading immediately if you wish to wait until the show's broadcast.

"This past weekend unfortunately, this was very serious, we had to ask someone to leave the game -- we had to expel someone, and it was Chima," Chen said during Monday's broadcast of The Early Show, which she also co-hosts for CBS.  "When you watch Tuesday night's episode you'll see why, basically, our back was up against the wall and we had to expel her from the game."

"You will see her behavior that led up to the expulsion and then you can decide, you know," Julie added.  "I'm sure a lot of people out there were rooting for her and I'm sure there were some people who  were happy to see her go -- that's always the way it is with everybody on Big Brother.  Some people love you, some people don't like you."

Chima, a 32-year-old freelance journalist from West Hollywood, CA, left the competition early Saturday morning.

"Chima has been evicted by the producers from the Big Brother house for violating the rules," the network said in a statement released Saturday. "She will not be part of the show's jury. Her eviction will be addressed on an upcoming broadcast of the show."

CBS didn't release any additional details beyond the brief statement, however Chima -- who had boasted that "nobody likes a crybaby" in her pre-season introductory video, ironically -- subsequently disputed the network's description of her exit in an email sent to an blogger.

"Yes, I did in fact quit the show, although there are reports on EW from CBS to the contrary," she wrote.  "Big Brother would like everyone to believe I was kicked off for not following the rules, but I went to the producers repeatedly over the past couple of days wanting to leave....wanting out of that house!"

"The producers NEVER want the world to think or know that we houseguests DO LEAVE when it becomes futile to stay.  I lost faith in the show [and] my ability to remain committed to this game."

"Do you really believe that I would be expelled for tossing my microphone when past houseguests have only been kicked off for violence [and] threats of violence?  You know better, as do I.  It's better that I left. I did what was best for me in this game and that was to leave. When I chose to play [and] play hard the power I did earn was completely usurped by a game piece never used before in this game and my HOH reign was rendered useless. I have no regrets."
According live feed viewers, Chima's exit occurred after she had increasingly ignored the instructions of the show's producers, whom she had vocally blamed for her eviction nomination by new Head of Household Michele Noonan.

(Chima had been the season's previous Head of Household, however Jeff Schroeder was able to "overthrow" her reign due to the season's "Coup D'etat" twist, resulting in Jessie Godderz -- her closest house ally -- being evicted instead.  Natalie Martinez and Lydia Tavera, Jessie's two other allies, had then joined Chima in spending the next two days mourning Jessie's departure and villainizing Jeff and his allies, which include Michele.)

After winning Thursday's new Head of Household competition, Michele had nominated Chima for eviction alongside Natalie on Friday afternoon.

Prior to the blackout, the feeds had also appeared to show Chima deliberately throwing her portable microphone pack into the water of the houseguest's backyard hot tub in an attempt to destroy it.

Big Brother's pre-taped Sunday night broadcast, which had concluded with coverage of Michele's eviction nominations of Chima and Natalie, had ended with an announcement that "one houseguest self-destructs and is removed from the game" during Tuesday's pre-taped broadcast.

"I don't care if I'm nominated.  This game is f--ked.  I'm f--ked.  My friends are f--ked.  So as far as I'm concerned I don't care," Chima said at the end of the Sunday night broadcast.

According to Showtime's Big Brother: After Dark live feed program, Tuesday night's Big Brother broadcast will also include coverage of the new Head of Household competition and nomination ceremony that occurred after Chima left the house.

(After China departed, Big Brother's producers declared Michele's HoH reign over and held a new HoH competition.  The competition, which took place Saturday evening, was won by Jordan Lloyd, Jeff's closest ally.  Jordan then nominated Natalie and Lydia for eviction.)

Chima isn't the first Big Brother houseguest to leave the long-running CBS reality series without being evicted by her fellow houseguests.

In 2008, Neil Garcia voluntarily left Big Brother: 'Til Death Do You Part -- the special winter Big Brother edition CBS aired during the Writers Guild of America strike -- during the competition's second week due to an unspecified "urgent, personal matter."  Sharon Obermueller, who had been sequestered since she and partner Jacob Heald had been evicted at the season's first Eviction Ceremony, returned to the competition in his place.

During the show's 2003 season, Big Brother 4 houseguest Scott Weintraub was removed from the show prior to the season's first eviction after he refused to listen to the producers' instructions and threw a temper tantrum that caused some of the other houseguests to fear for their safety. 

Earlier in that same season, another would-be Big Brother 4 houseguest Brandon Showalter was removed from the show before the houseguests even entered the Big Brother house.  After the show's cast was announced, a still-sequestered Brandon allegedly attempted to contact his girlfriend -- a violation of the show's sequester-period rules.  An alternate contestant replaced Brandon when the cast entered the Big Brother house.

In 2001, Big Brother 2 houseguest Justin Sebik was kicked out of the house after a night of drinking included Justin holding a knife to the throat of fellow houseguest Krista Stegall and asking if she'd still love him "if I killed you." 

Although Krista -- Justin's "showmance" girlfriend -- didn't seem threatened by his action and later claimed to have no memory of the incident and protested that "[the producers] blew that completely out of proportion," Big Brother's producers decided to remove Justin after determining he had demonstrated inappropriate behavior.

By the time the season ended, Krista had found a new "showmance" partner -- eventual Big Brother 7: All-Stars winner Mike "Boogie" Malin, who proposed marriage to her live on Big Brother 2's season finale.  The pair later broke up and never married.  Despite her earlier comments, Krista sued CBS over the knife incident a year later.