Atack told Reveal magazine that though the 19-year-old singer and she were never boyfriend and girlfriend, they had a short-lived thing that was just a bit of fun before the couple went in opposite directions, the Mirror reported.
The 23-year-old English actress added that the couple has not spoken to each other in a while.
Mumbai Roundup: 9 incidents that took place this week
Photos: Ajay Devgn, Parineeti, Tabu at 'Golmaal Again' trailer launch
Photos: Dipika Pallikal Karthik oozes oomph in bikinis and sarees
Photos: Kareena Kapoor Khan's grand birthday bash
Photos: 'Dangal' girls Sanya Malhotra, Fatima Sana Shaikh's dinner outing