"The Big Bang Theory" season 8 cast Kaley Cuoco's split from husband Ryan Sweeting reportedly looms because of the "erratic behavior" of the actress.

The Star Magazine, according to Celebrity Dirty Laundry, alleged that it's only a matter of time for "The Big Bang Theory" season 8 cast Kaley Cuoco to announce her split with husband Ryan Sweeting.

Last month month, Star reported that it wouldn't be surprised if "The Big Bang Theory" season 8 cast Kaley Cuoco and Ryan Sweeting split would be in the horizon since he allegedly becomes contented just letting his wife earn for the both of them.

"Ryan knows that his tennis career is all but over. He doesn't have the ambition to compete for the big bucks. And why should he? He has a rich wife," a source toldStar, according to Inquisitr.

According to the tabloid, Ryan Sweeting, a professional tennis player, only earned $156 in prize money in the whole of last year. He also dropped out of the American Tennis Association's ranking after peaking at No. 64 in 2011.

Now, the tabloid is claiming that Kaley Cuoco and Ryan Sweeting are sleeping in separate rooms.

"They've been fighting a lot because he tells her she's not a star at home," the source told the magazine, adding that the actress has been treating the athlete like a "house boy."

Kaley Cuoco's ego reportedly grew after signing a contract for $1 million per episode for another three years of "The Big Bang Theory."

Celebrity Dirty Laundry claimed that the report about the "The Big Bang Theory" season 8 cast Kaley Cuoco's split from husband Ryan Sweeting doesn't really surprise anyone.

"Ryan Sweeting always seemed like Kaley's rebound fling, even though her relationship with Henry (Cavill) was clearly a PR-fixed romance. But you know, she couldn't let her image take a hit like that, considering they broke up after Henry got cold feet following all the PR outings and non-stop press," it said.