Amira bowed out from Albert Square last month after finally realising that Syed Masood (Marc Elliott) would never love her. She had been back on screen for five months.
Kalidas told Lorraine today (April 25): "I think the thing with Amira is, she's been through a lot [and] she needs to sort out her life. She needs to find her direction. I think she was spending too much time focused on Syed and making decisions that I don't think she was that clear about."
She continued: "It was really difficult playing her because there were so many times when I thought, 'You poor thing - just be strong'. And by the end of it she was, and she left!"
Asked whether she would return to EastEnders again, the actress replied: "You never know. But I do think she needs some time out."
Kalidas is currently concentrating on her music career as she promotes the upcoming release of new single 'Love Between Us'.
She added: "I've been writing and recording for years, since I was a teenager. It's been a huge passion of mine for years."
Kalidas is in the running for the 'Sexiest Female' prize at this year's British Soap Awards, which take place on Saturday (April 28).
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Watch the video for 'Love Between Us':