Sadie Frost has dumped her toyboy lover - on the advice of friend Kate Moss.The supermodel apparently instructed fashion designer Sadie to bring British TV presenter Alex Zane, 26 ( right ), to dinner at London's Ffiona's restaurant so she could grill him about his intentions and assess if he was a suitable suitor for 41-year-old Sadie. Kate and her singer friend Jenny Frost acted as the judging panel firing off a barrage of questions at Alex and sniggering at his answers. The cat walkbeauty's rocker boyfriend and druggie Pete Doherty also submitted a few questions, although he chose to wait outside in the car. A source told Britain's Daily Mirror newspaper: "They're an exclusive group who have been exposed for sex and drug debauchery in the past - and they don't want to be stung again. Kate wants the best for Sadie, and doesn't want to see her sad again like she was after splitting from previous lovers."Kate was unimpressed with Alex and, after allegedly noting her criticisms, mother-of-four Sadie decided to end her short-lived romance with Alex - who she started dating in October - earlier this week. Sadie has been notoriously unlucky in love. Her first marriage to singer Gary Kemp ended in 1997 and she divorced her second husband Jude Law in 2003 after six years.

Sadie Frost and Ex. Jude Law