The next time he heard of Kouider was when she accused him of being a "paedophile".
She rang his mother in Dublin, contacted his business partners and created a fake Facebook page, he said.
"It was incredible, amazing, but during the seven years in the band, we worked 365 days a year, living on planes, in hotels and out of suitcases, and never being in the same country for two days," he told the Belfast Telegraph.
"After a while, you realise there's no point in being successful if you can't enjoy it, share it with someone else or be with the people you care about." Brian signed a solo recording deal and in 2004 he released his debut album, Irish Son, which featured the number one smash Real To Me.
Hours later, she was killed and her body thrown on to a bonfire in their garden in Wimbledon, south west London, the court has heard. It happened twice." In 2012, police had been called a number of times over various accusations, including that he had photos of another woman on his phone, jurors heard.
Mr Horwell asked Mr Walton: "We have heard that your name was referred to by Sabrina Kouider before and after her arrest. " Mr Walton said: "Never, ever." The witness said: "No way, never." Kouider and Medouni have admitted perverting the course of justice but deny murder. The future pop star performed the Boyzone track Picture of You and secured his place in the band.He joked in an interview with The Mail on Sunday: "I sometimes wonder how far up the career ladder I'd have gone if I'd stayed with Mc Donald's.Referring to outlandish accusations levelled at him by Kouider, prosecutor Richard Horwell said: "Have you ever been party to a plot to drug the people in the Wimbledon flat and whilst unconscious sexually abuse the occupants?" Mr Walton said: "Absolutely not." He said the last time he was in the UK was when he went to a meeting in October 2015.BRIAN Mc Fadden shocked the pop world when he dramatically quit Westlife in 2004 when the band was at the height of its fame.He went on to carve out a career as a solo artist, talent show judge and TV presenter, so what's next for Brian... He was born on April 12, 1980 in Dublin, Ireland and got his first taste of performing at an early age thanks to roles in local stage productions and an Irish TV show called Finbar's Class.Giving evidence at the Old Bailey, he said his ex, Sabrina Kouider, would "flip" during their two-year turbulent relationship.He would support the fashion designer with thousands of pounds every month, even paying her rent long after she left him.Jurors have heard Mr Walton lay at the heart of Kouider's campaign of torture against Miss Lionnet.Kouider, 35, and her partner Ouissem Medouni, 40, allegedly beat her into a so-called confession that she was in league with Mr Walton.