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Singer Nicole Scherzinger, the on-and-off girlfriend of Mercedes Formula One driver Lewis Hamilton, has reportedly admitted that she suffered 'dark moments' after their split.

But the ‘X factor’ judge believes the sudden break-up forced her to find herself again and concentrate on her work.

According to Glamour magazine, the 35-year old former Pussycat Doll confessed that even now she sometimes struggles to deal with the memories and ’had a blanket of tissues many a night’ and ordered pizzas to deal with her break-up.

However, the American singer-songwriter insisted that they aren't reuniting again.

The couple called off their five-year relationship two months ago, after their hectic work schedules put a strain on their romance.

Scherzinger has reportedly admitted that though she found Hamilton's public declarations of love to win her back 'sweet', they are no longer together.

The stunning beauty said it was ‘sweet’ of the 28-year old British Formula One driver, who has made his desire of reuniting with her public, to have dedicated his Hungarian Grand Prix win to her as an acknowledgement of the her support, but their relationship is definitely ‘over’, Metro.co.uk reported.

On the other hand, reality star Khloe Kardashian has reportedly given former Clippers and Lakers star Lamar Odom an ultimatum to either get help with his alleged drug addiction or move out of their home.

Sources revealed that the 29-year old Kardashian made it clear to her 33-year old professional basketball player-husband, who recently got busted for DUI, that they can't live together until he completes rehab, which he's been unwilling to do since his addiction spun out of control.