Nicole Scherzinger star Nicole Scherzinger has vowed that she would dump her beau Lewis Hamilton if he ever betrayed her. The 30-year-old singer has revealed that she can't stand womanisers. And even though she loves her Formula 1 boyfriend, she would break off the relationship if she found the racing driver cheating on her."We really trust each other but I would draw the line if he cheated," Contactmusic quoted her, as saying. "Any woman with self-respect and self-worth wouldn't tolerate that,"Pussycat Dolls