After the lovey-dovey month of February, things get real in March.

As it starts to get nicer out, layers are typically shed... along with relationships. But while the nice thing would be to take a soon-to-be ex out for drinks and explain why things aren't working, it's all too common in Hollywood for relationships to end when one partner finds out the other is cheating. And sometimes, it's not even with just one person.

Check out out our roundup of the 10 worst celebrity betrayals of all time!

Related Article: Is Sandra Bullock Allowing Jesse James Into Her Life?

 

1. Sandra Bullock and Jesse James

Mere weeks after praising him during her Oscar acceptance speech, Sandra found out in March 2010 that Jesse had cheated on her with an army of tattooed skanks. "I think I'm the most hated man in the world now," said Jesse, in the understatement of the year. She filed for divorce later that year and while her career continued to skyrocket, the same cannot be said for Jesse.

2. Brad Pitt and Jennifer Aniston

Not only did Brad leave Jen for Angelina Jolie in 2005, he bad-mouthed her to the press afterwards. Brad said he "wasn't living an interesting life" during their marriage and was "trying to pretend my marriage was something that it wasn't."

3. Halle Berry and Eric Benet

Eric and Halle divorced in 2005 and while he doesn't deny cheating, he does deny the number of women Halle accused him of infidelity with. "If she said that, that I cheated on her 27 times, then she is simply lying," he said in 2006. "I've admitted my indiscretion and apologized and took responsibility. I think maybe it's time for Halle to take some responsibility, instead of constantly casting herself in this victim mode and implying her commitment to our marriage was without flaw."

4. Ryan Reynolds and Alanis Morissette

Alanis and Ryan were set to be engaged, but called things off in 2007. Although there was never an accusation of infidelity to the press, Ryan began dating Scarlett Johansson immediately after the split, and Alanis felt completely betrayed -- writing the song "Torch" about Ryan, and planning to write a chapter about him in a tell-all book that never materialized. Alanis has since gone on to get married and gave birth to a child last year... though perhaps Ryan should just count himself lucky that he didn't get a whole angsty album like Jagged Little Pill written about him like Dave Coulier did.

5. Donald and Ivana Trump

In February 1990, Donald and Ivana filed for divorce after he reportedly cheated on her with his soon-to-be wife Marla Maples. Ivana didn't seem too upset, though. She got a $20 million payout and even kept his last name afterwards!

6. Arnold Schwarzenegger and Maria Shriver

Never sleep with the hired help. The Governator committed the ultimate act of betrayal after 25 years of marriage, when he cheated on Maria with their housekeeper and ultimately fathered her child.

7. Shania Twain and Robert "Mutt" Lange

After 15 years of marriage, it was revealed in 2008 that this couple were splitting after Robert had an affair with her then-best friend. "It was like I was kicked off my own bus while it was moving full speed ahead, and I landed in the dirt and everything I had was thrown out after me," said Shania. The divorce was finalized in 2010 and in a soap opera turned to reality, Shania went on to marry her former best friend's ex-husband the following year.

8. Kelsey and Camille Grammer

The super nasty divorce between Kelsey and Camille reached a boiling point last year when she accused him of infidelity with his now-wife Kayte Walsh, claiming that she was encouraged by him to sign on for The Real Housewives of Beverly Hills so she would leave the house. "Looking back, maybe he wanted to keep me preoccupied in California while he was off having his affair in New York," she said. The pair finalized their divorce last December. 

9. Eva Longoria and Tony Parker

Eva filed for divorce after three years of marriage in November 2010, when she discovered hundreds of personal texts between her hubby and a mutual gal pal.

10. Lucille Ball and Desi Arnaz

Throughout their marriage, Desi was notorious for being a womanizer and cheating on Lucille. "Basically, Desi's attitude was, "What the hell's the matter? I love her. When I go out with women, they're usually hookers. Those don't count," said one of his close friends. After 20 years together, they finally split in 1960. 

Related Article: Is Sandra Bullock Allowing Jesse James Into Her Life?

What do you think was the worst celebrity betrayal?

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