Having been married for 13 years, Sarah Michelle Gellar and Freddie Prinze Jr. are considered one of Hollywood's rare relationship success stories. But according to a new report, the duo's union is in serious trouble — and they may be headed for a divorce!

“They’ve been at each other’s throats for a year now,” a source tells OK! magazine. “It’s been a long, slow decline for them. At this point, it’s pretty clear they’re together only for the kids.”

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sarah michelle gellar

The duo in 2000.

The parents to daughter Charlotte, 6, and son Rocky, 3, have reportedly been fighting over money after Freddie's spinal surgery a year ago made Sarah Michelle the sole breadwinner for much longer than she expected.

“She felt sorry for Freddie when he was bedridden, but then she noticed that he was in no rush to get back into acting,” the insider reveals to the mag.

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The 39-year-old reportedly spends his days playing video games and buying "childish things." Sarah Michelle, 38, says if he doesn't "grow up" soon, "it will be the end of them," the source adds.

Here's hoping the duo can pull it together for their two kids.