Photo: Eqsuire
Appearing on the cover of the latest issue (above), the 'Hard Out Here' singer was asked about why she took time away from the industry in recent years.
"I'd had enough of people constantly hacking at me," replied Allen. "And I think once you're exhausted physically and mentally, it does get you down."
She continued: "I thought the people in that showbiz circle were my friends, but almost the second I got pregnant and I wasn't able to go out and party, they were suddenly quite nasty. There's a way that those people survive, and it's not by being nice. The way they make themselves feel powerful is to ostracise other people.
Allen added: "I feel blessed to be able to recognise that but at the same time it can still feel pretty shit what you walk into a room full of people and you can feel the eyes looking at you and people laughing."
Watch the video for 'Hard Out Here' below
Allen continued: "It's hard for me because I will eternally feel like that little bullied girl at school, because that's what I was. I feel like when I was growing up and dreaming of being a popstar, it was the days of Britpop when things felt authentic and anarchic, and people were taking drugs and having a lot of fun and having sex with each other and it wasn't fake, it was real.
"So excuse me if I found it a bit disappointing when I arrived and it was a bunch of sterile fucking Botoxed idiots that stank of desperation."
Below: Photos of Lily Allen, Rita Ora, MIA performing at Paris underwear show