The singer, who is rumoured to have been offered a job as a presenter on the US X-Factor, said that after Kimberly Wyatt, Ashley Roberts, Melody Thornton and Jessica Sutt decided to go solo, she did the same.
'A few of the girls left the group and I was like, 'Am I the only Doll standing here?'' she told Attitude. 'We're not in touch.'
But she insisted there are no hard feelings.
'We're all busy and I'm happy for everyone. Once all the girls went off, I thought it was the perfect opportunity for me to go and do my music and what I love.'