Photos : Naomi Campbell Sacks Chinese Model For Dating Her Billionaire Ex

The aspiring model seen frolicking with Naomi Campbell's ex-boyfriend has been fired by her management firm for 'unprofessional conduct' and an 'unacceptable work ethic'.

Naomi, 42, mentored Luo Zilin, a former Miss Universe China, on her reality show The Face. But MailOnline today revealed how Luo, 25 also known as Zi Lin is reportedly dating Naomi's former love, Russian billionaire Vladimir Doronin with the couple seen passionately embracing on the Spanish party island of Ibiza.

Naomi and Vlad have a complex relationship, and sometimes break up and make up. In many ways their relationship is like a business arrangement.''Naomi brings glamour to his hotels and properties, and he treats her extremely well.

But they spend a lot of time apart due to work commitments.'The last time Naomi and hotel and property mogul Vladimir were pictured together was on Miami Beach in March.

Luo and Naomi Campbell

                                                                  

 Naomi and Vlad

                                               

Luo