The singer also feels it is her only chance to rebuild her out-of-control life.

But the rapper has snubbed her.

According to NOTW, Britney has been so depressed she called a suicide helpline. The calls came after Britney found out KEVIN FEDERLINE had begun dating former Playboy babe NICOLE NARAIN.

A source close to Federline told me: "Britney's bouncing off the walls with rage and has been calling Kev day and night to check he's not with Nicole.

"She's desperately jealous and wants to keep Kevin's attention on her. She wants him back. She thinks by getting Kevin back he'll drop the custody battle—but that's not going to happen."

A pal revealed: "She's crying all the time. It's not the first time she's been suicidal."