Britney Spears' pal told a friend he should "just kill himself"

Britney Spears' pal and self-styled manager Sam Lutfi told a friend he should "just kill himself" when they fell out, it has been claimed.

Lutfi - who has had three restraining orders taken out against him - would fly into jealous rages, Danny Haines said.

Haines, who obtained an order against Lutfi, told US magazine Blender he was "more jealous than a lover."

He claimed Lutfi would go to extremes, telling him he was a "worthless motherf*cker" one minute and that he "loved" him the next.

When Haines eventually cut him off, Lutfi humiliated him, e-mailing naked photos of him to his family, friends and co-workers.

He texted and called incessantly and, according to court documents, told Haines he hoped his sister would be "raped to death."

Haines says that in one e-mail to him, Lutfi wrote of Haines' mother that he hoped "Satan devours her flesh and bones" and he looked forward to the day when he would "p*ss on her burial."

It comes after Lutfi denied making money off his relationship with the troubled singer.

He was quizzed last week by Kevin Federline's lawyer Mark Vincent Kaplan about speculation he is in league with photo agency to tip them off about the chart star's whereabouts. Lutfi was quizzed by Kaplan during his deposition in the on-going court battle between Brit and ex-husband K-Fed over custody of sons Sean Preston and Jayden James.