How Graham Quinn’s Betrayal Ended His Marriage to Myleene Klass

Some marriages end with a quiet conversation; Myleene Klass’s first marriage ended with a birthday party revelation that still makes headlines years later. The former Hear’Say singer married Graham Quinn in October 2011, but within eighteen months the union was over after she said she caught him cheating with a celebrity at her own birthday party, and here’s what’s actually known about the man often reduced to a tabloid footnote.

Marriage: Oct 2011 – Apr 2013 ·
Children: 2 daughters (Ava & Hero) ·
Split reason: Infidelity at her birthday party ·
Myleene’s current partner: Simon Motson (since ~2018) ·
Quinn’s public presence: Low

One pattern emerges from the chaos: the divorce was swift, but the aftermath kept making news for years.

Why did Graham Quinn leave Myleene?

The cheating scandal at her birthday party

According to Evening Standard, Myleene Klass has publicly stated that she caught Graham Quinn with another woman at her own birthday party at home, involving a “famous woman” on a balcony. She said Quinn blamed the incident on alcohol. The woman was never named in the coverage.

Later reports, including a 2024 Metro interview, revealed Klass had “a clue about the cheating” even before the wedding. She nearly jilted Quinn the night before the ceremony, but went ahead anyway.

The unnamed female celebrity

The identity of the other woman remains one of the most tantalizing gaps in the story. Evening Standard confirmed the woman was “famous” but declined to name her. Klass herself never publicly identified the person.

The lack of an official name has fueled speculation for years, but no reliable source has ever confirmed a specific person.

The end of the marriage

According to BBC Newsbeat, the marriage lasted about 18 months. Klass applied for a divorce, and a district judge granted a decree nisi on 23 April 2013 after a hearing that lasted under two minutes. The split was finalized quickly, with no public statement from Quinn.

Quinn has “always denied” claims that he walked out on the family on Myleene’s birthday, as reported by the Daily Mail in a 2025 roundup. He also denied a rumor about being a backing dancer before the split became public, according to an OK! magazine article from 2016 (cited in planning notes but not independently verified).

Who is Graham Quinn in a relationship with?

Graham Quinn’s current relationship status

There is no confirmed information about Graham Quinn’s romantic life after the divorce. He has no public social media presence, and no interviews or sightings have been reported in recent years. As of 2025, his status is unknown.

Myleene Klass has been with Simon Motson since around 2018, according to Evening Standard. Motson is a businessman, though he keeps a lower profile than Klass. The couple have not married, but they are in a long-term relationship.

While Klass continues to appear on television and radio, Quinn has vanished from the public eye. No recent photographs or interviews exist, and even his current whereabouts are unknown. This asymmetry is typical in celebrity divorces, but it’s unusually stark here.

How many husbands has Myleene Klass had?

Myleene Klass’s first husband: Graham Quinn

Myleene Klass has been married exactly once—to Graham Quinn. They were together for over a decade before marrying in 2011, as detailed by Irish Examiner in a 2012 profile. The marriage ended in divorce in 2013.

Her current partner Simon Motson

Since ~2018, Klass has been in a committed relationship with Simon Motson. They are not married, but they share a home and have appeared together publicly. Motson is not a celebrity, which aligns with Klass’s preference for a private partner after her high-profile marriage.

Children from the marriage

Klass has two daughters from her marriage to Quinn: Ava (born 2007) and Hero (born 2011). Both girls were born before the wedding, suggesting a long-term partnership before the legal tie. The girls have been raised primarily by Klass, and there is no public evidence of Quinn’s involvement in their lives after the divorce.

Timeline: Graham Quinn and Myleene Klass

The timeline shows a fast collapse from wedding to decree nisi—just 18 months.

The speed of the legal process reflects Klass’s determination to close the chapter. But the emotional fallout lingered; in a 2015 interview with Evening Standard, she said she “thought I’d never trust anyone ever again.”

What’s confirmed and what’s unclear

Confirmed facts

• Quinn was married to Klass from 2011 to 2013 – BBC Newsbeat
• They have two daughters – Evening Standard
• Klass said she caught Quinn cheating – Evening Standard
• Quinn has denied leaving on her birthday – Daily Mail

What remains unclear

• Quinn’s current relationship status – no evidence
• His profession or whereabouts – no reports
• Identity of the other woman – never confirmed
• Whether Quinn is deceased – rumor only

The confirmed facts are few, but they were enough to end a marriage. The unclear items are exactly where gossip thrives.

Quotes and perspectives

“I had a clue about the cheating before the wedding.”

Myleene Klass, speaking to Metro in 2024

“Always denied.”

Graham Quinn, via Daily Mail (2025), on claims he walked out on his family

These two statements capture the gap: Klass’s open recounting versus Quinn’s flat denial. Neither side offers a full picture.

Summary

Graham Quinn is a shadow in Myleene Klass’s story—a man who vanished from public life after a short, scandalous marriage. What remains is a one-sided narrative built from her interviews and tabloid reports, with Quinn offering only a blanket denial. For those looking for a definitive answer to why the marriage failed, the only honest conclusion is that we have Klass’s version, and Quinn’s silence speaks volumes. For anyone tracking the celebrity gossip circuit, the lesson is clear: without a second voice, a story is just a monologue.