“Big Bang Theory” actress Mayim Bialik has a few theories about why she was turned away from her United Airlines flight on Sunday evening.

Bialik, 43, told her Twitter followers she was upset with the carrier after an airline employee allegedly “shut the gate in [her] face” at a Houston airport, and she subsequently remarked that perhaps the worker who did it “just doesn’t like ‘The Big Bang Theory.’”

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“To the @UnitedAirlines flight attendant who shut the boarding gate in my face. I made my connecting flight in Houston,” Bialik tweeted just before 7 p.m., local time.

“[I]t was a tight squeeze but You said there were plenty of open seats. [W]hen you saw my carry on suitcase you said there was no room and shut the door in my face.”

The actress went on to claim that five other passengers from her connecting flight were allowed on the plane, all with carry-on luggage. Bialik further suggested that the crew could have placed her luggage in the first-class she reserved, and allowed her to sit in an unreserved economy seat.

“Maybe the first class seat I was supposed to sit in could have held it and I would have gladly sat in all of the open seats anywhere on that plane,” she wrote.

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Bialik also took her frustrations to Instagram, where she elaborated on the alleged incident and again put forth her hypotheses as to why the gate agent didn’t allow her on the flight.

“Maybe she hates [‘The Big Bang Theory’]. Maybe she was having a bad day. Maybe she hates women who look like they’re going to cry,” Bialik wrote.

“Now my suitcase is broken from running so hard and aggressively, my asthma is super angry and random people think I’m a prima donna because as she shut the door I said ‘I have a first class seat!’ I didn’t mean I deserve it more, I meant can my suitcase sit in my first class seat and I’ll sit anywhere else? Not a good day for me and @united,” she added.

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In a statement to Fox News, a representative for United Airlines says the carrier is reviewing the case.

“We were able to get Ms. Bialik on the next flight to Los Angeles and we are reviewing what happened with our team in Houston,” a spokesperson confirmed.