Peaches Geldof's six-month marriage reportedly ended because she is seeing another man. Peaches - who announced she is divorcing U.S. musician Max Drummey on Saturday - is "besotted" with a new rocker, The Virgins singer Donald Cumming.
A friend of Peaches told Britain's The Sun newspaper: "Peaches has been seeing Donald for weeks. She couldn't care less about Max. He needs to move on now that she has got bored of him."
Peaches, 19, and 24-year-old Max issued a joint statement on Saturday confirming they are divorcing. However, they denied anyone else was involved in the split.
The statement said: "After much soul-searching we have made the mutual decision to end our marriage and have agreed to go our separate ways."
"There were no other people involved in this decision and we both look forward to a future as good friends."
Peaches sparked rumors about her friendship with Donald after being spotted with him in public on numerous occasions, including spending New Year's Eve together.
It has been claimed Peaches - who moved to the U.S. to be with her husband - has not been living with Max for months.
The source added: "Sadly it has all the trappings of a marriage of convenience. Peaches was desperate to live in New York and get a working visa and now she's got it."
"There was a flush of romance, but that quickly vanished once the novelty of being married at such a young age wore off."
The couple wed in Las Vegas in August 2008 just weeks after meeting each other.
Peaches' father - Live 8 founder Bob Geldof - is said to be "relieved" the marriage is over.
In October, Peaches said: "I'm realistic, you can't ignore divorce rates. Every friend of mine has parents who are divorced. I didn't go into it with Max thinking, 'This is going to last forever.'"