Emma has also worked for such publications as Vogue, Vanity Fair, Harper’s Bazaar, Time Out, The Guardian, NME, Interview and Blackbook, where she has interviewed celebrities like Snoop Dogg and Brad Pitt.
Most recently, she contributed an essay to the record Ceremonials by Florence and the Machine.
The couple had begun dating after they were introduced by Martin Mc Donaugh, who directed In Bruges, the film which earned the Irishman his gong.
An insider told the publication that Emma felt slighted by her famous boyfriend when he failed to thank her during his Golden Globes speech last month.
Irish actor Colin Farrell has been dumped by writer Emma Forrest – who began secretly dating early last year – because of his lack of commitment.
The book features contributions from many well-known women, including Helen Oyeyemi, Marian Keyes and Sarah Jones.
Speaking about the one-year relationship with Farrell, she said: ‘I do not feel wronged’ but added ‘our parting was not a surprise.’ The pair met in 2009 on the Bere Island, west Cork, set of the film Ondine, in which they co-starred.