London, May 4 After a recent argument with her boyfriend Paul Sculfor, Hollywood actress Cameron Diaz has nicknamed her grey strand among her blonde locks after him.

“After a big fight with him, Cameron noticed a grey hair she had not seen before. She joked that she named it ‘Paul’ because he was probably the reason she had it,” Chinadaily.co.cn quoted a source as saying.

Diaz, 36, has been dating British model Paul for almost two years and according to him the couple argued because of Paul’s lack of commitment.

“She thought she would have an engagement ring by now but Paul’s dragging his feet and this is stressing her out,” the source said.