Kaley Cuoco and husband Ryan Sweeting announced their divorce just over a few months after celebrating their first wedding anniversary.

And while "The Big Bang Theory" actress cited irreconcilable differences as the reason for the divorce filing, a new report alleges that it was because of the tennis athlete developing an addition to painkillers.

A source told Us Weekly, as shared by the Daily Caller that Kaley Cuoco was supportive at first but then her husband has resorted to lying about the painkillers.

"She supported him but she said he couldn't make the commitment to get sober," the insider alleged. "He'd tell her he was working on it and instead go get wasted."

Accordingly, Ryan Sweeting developed the addition back in 2014 when he had to take painkillers following the surgery. But the tennis player previously had a record back in college when he was arrested for drug possession.

A rep for the couple confirmed the divorce filing to People in a statement which read, "Kaley Cuoco and Ryan Sweeting have mutually decided to end their marriage. They ask for privacy at this time. No further statement will be issued regarding this matter."

Hollywood Life reported that the divorce could also be prompted by Kaley Cuoco and husband Ryan Sweeting's very different personalities.

"Ryan was home all the time," the source told the site. "He was dealing with an injury and would be kind of a party poor and would really want people to feel bad for him. Kaley's life, on the other hand, is going pretty well right now and she is a very fun-loving person."

"They had a lot of good times together, but the change in his demeanor following his injury made him different from the person she fell in love with," the article continued. "She decided that it would be better to move on because things weren't helping to change his attitude."