Simon Cowell is giving his ex-fiancee Mezhgan Hussainy a £5 million gift following the end of their stormy relationship, according to reports.
The 52-year-old X Factor supremo split with the make-up artist, ending their wedding plans, after a series of rows.
Now journalist Tom Bower says in a new unauthorised biography, serialised by The Sun, that Cowell promised to transfer ownership of his £5 million Beverly Hills house to Ms Hussainy, for being a "hopeless boyfriend".
Cowell - who it was claimed at the weekend slept with former X Factor judge Dannii Minogue - had been engaged to Ms Hussainy since early 2010.
"I put her in the public eye and attracted a lot of attention to her. I had to be sensitive about her position and I didn't want to hurt her family, with whom I had become very close," Cowell is reported to have said about her.
Bower spent a year interviewing friends and colleagues of Cowell for his book, Sweet Revenge, as well as Cowell himself.
The media mogul reportedly described the engagement to Ms Hussainy - whom he has known since 2002 - as "a big mistake".
Meanwhile, Minogue is said to be unhappy about the claims of an affair being chronicled in the book. The 40-year-old singer recently split from her rugby player partner Kris Smith, with whom she has a 21-month-old son.