Mayim Bialik has given her heartfelt statement about CBS' The Big Bang Theory, which was recently announced to be ending with its 12th season.

Bialik, who plays Amy Farrah Fowler on the show, posted an op-ed on her pop culture and lifestyle website, Grok Nation.

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"Am I happy? Of course not. This has been my job since Melissa Rauch and I joined the cast as regulars in Season 4," she wrote in the article. "I love my job. I love my castmates and I feel such appreciation for our incredible crew, our brave writers, our entire staff and our amazing fans. So many people are a part of our Big Bang family.

"This is hard. I love coming to work and pretending to be Amy. She's a riot. She's me, and I am her. And soon she will not be mine to create."

The Big Bang Theory has been running on CBS since 2007, going down in history as television's longest-running single-cam series. It has been a cash cow for CBS ever since its debut, but Jim Parsons, who plays the show's lead character, Sheldon Cooper, wanted to move away from the series despite the opportunity "to make more than $50 million including profits if he agreed to stay on [The Big Bang Theory] for two more years," according to Entertainment Weekly.