Simon Cowell and Lauren Silverman’s relationship described in his biography

It is as yet unclear whether or not Simon Cowell and Lauren Silverman will attempt to make their relationship work for the sake of their unborn child.

While some sources say Simon Cowell and Lauren Silverman are a couple, others say he is preparing for a legal battle over his $350 million fortune – a huge chunk of which could go on child maintenance.

Simon Cowell and Lauren Silverman are believed to have met while on vacation in Barbados some years ago through her real estate husband Andrew.

Biographer Tom Bower witnessed the beginnings of Simon Cowell and Lauren Silverman’s close friendship a year-and-a-half ago, when he spent time on a yacht called the Slipstream, which the mogul had chartered for $3 million a month.

In his biography, Sweet Revenge: The Intimate Life of Simon Cowell, Tom Bower noted that there were a number of high-octane glamour women who were competing for Cowell’s attention, but that Lauren Silverman was “his closest confidante”.

Tom Bower described him as “occasionally, an insecure, lonely man whose greatest comfort was lying on a couch between Lauren Silverman and [his TV producer] Kelly Bergantz, watching a film and grazing on simple food suitable for kids in a nursery”.

He also details in the book Lauren Silverman’s shock when Simon Cowell initially told her about his engagement to Mezhgan Hussainy in February 2010.

According to Tom Bower, Lauren Silverman, who he calls Simon Cowell’s “best friend in New York” was “completely flabbergasted” by the news, telling her husband Andrew as she finished her phone call with the mogul: “The whole thing is wrong.”

Andrew Silverman now believes Lauren started getting close to Simon Cowell during one of the many vacations they all shared together.

Lauren Silverman and her husband, who have a seven-year-old son called Adam, are now officially separated.

It is not known whether Andrew Silverman filed the legal papers after learning of his wife’s pregnancy with Simon Cowell, although their break-up does leave his estranged wife free to start a new life with Cowell.

Andrew Silverman is being represented by Manhattan family lawyers Cohen Goldstein and filed his affidavit on July 24.