Amber Harrison says her legal battle with the Seven Network was "a lesson in how many ways can you screw a girl".

But she said she did not regret going public with her side of the story about her affair with Seven West Media chief executive, Tim Worner.

On Monday, the Supreme Court of New South Wales ordered the former executive assistant to pay her former employer's legal costs.

She had already consented to the court's gag order banning her from speaking publicly about her affair or confidential company information.

She told 7.30 she was glad she had spoken out.

"I made a decision that I couldn't go on without telling the truth and without telling it the way I did, so no, I don't regret it," Ms Harrison said.

"At the start this was about a spat with two people but this has turned into something very different.

"This is a company that signed me into agreements and then didn't honour them, and the idea that I'm not supposed to stand up for myself when that happens is wrong.

"This is not about a relationship, this is about what the company did next and it always has been."

'It's exhausted me in every way'

Seven West Media CEO Tim Worner. ( AAP: David Moir )

When Ms Harrison left Seven in 2014 she signed confidentiality agreements in return for around $400,000, but she broke her silence in December last year.

"I didn't get that money. I signed a deal, yes, but as soon as it was signed the deal fell apart and I just decided … that I couldn't get into the court system and the court system wouldn't serve me as an individual, and I went public to tell the truth, to tell my story."

On Tuesday, Ms Harrison was unemployed and facing bankruptcy.

"Litigation is your life, and I'm just one person against a huge company with huge resources and it's changed me and it's exhausted me in every way," she said.

"I think the boys club has shown that they are still, for now, in control, but we can change that and we will. I think we're seeing examples of that with the AFL and we are, we can change cultures."

Seven welcomes court decision

Seven West Media declined 7.30's request for an interview, but in a statement the company said it welcomed the Supreme Court's decision.

"The court found that Ms Harrison engaged in numerous breaches of the settlement deed and her employment contract and these breaches were persistent and flagrant," the statement said.

"It found that Seven had every entitlement to commence proceedings under the deed and conducted the proceedings in an entirely orthodox and proper fashion.

"The court also rejected Ms Harrison's contention that her rights under the settlement deed were manipulated by Seven."

The company said it wanted her to return confidential documents she had taken, and Ms Harrison promised to do so.