The former 'Made in Chelsea' star was reportedly involved in a public bust-up with her rapper husband, during which she insisted they end their marriage of 21 months.
During the ''heated'' argument, she yelled: ''I want a divorce now! Give me a divorce!''
The spat took place at private members' club Soho House in Istanbul, where the 25-year-old model is said to have been ''screaming'' about her desire to finish with the 'Just Be Good to Green' hitmaker.
According to The Sun newspaper, one onlooker said: ''Lots of people witnessed the row. Things escalated and she started screaming about a divorce at the top of her voice.''
The brunette beauty wed the 31-year-old musician - whose real name is Stephen Manderson - at Babington House in Somerset in September 2013, although a pal of the fitness guru revealed the pair are trying to work through their ''issues''.
The source said: ''She had a similar meltdown about her woes at the Baftas after a few drinks.
''Stephen's lifestyle doesn't lend itself to marriage and she's very young. There are issues but they want to make a go of it and it will take a lot for her to divorce.''