Ruth Wilson is out of The Affair, but she's staying silent about what really led to her departure. 

The actress appeared Thursday on CBS This Morning, and while she confirmed she wanted to leave, there was still an aire of mystery surrounding what went down. 

"I did want to leave, but I'm not allowed to talk about why," said Wilson, who was promoting her upcoming movie, The Little Stranger. 

Gayle King changed the topic to try and find out whether the decision to exit the Showtime drama was down to salary parity, Wilson said the following:

"I've never complained to Showtime about pay parity."

Related: The Affair Renewed for Fifth and Final Season!

Back in February, Wilson admitted to Radio Times that Dominic West, her male co-star, "definitely gets more" pay than her to appear on the series. 

"Certainly when I signed up to that project, I would have got paid less," she said.

"Then [the producers] might argue, 'Well, he's already done a major American TV show [The Wire], so he's already got a level.' But even after a Golden Globe, I'm not going to be on parity."

"So he definitely gets more than me. I mean, I don't know what the figure is, but I'm sure he does."

Following Ruth's comments on CBS This Morning, Showtime released the following statement to Deadline:

We can’t speak for Ruth, but heading into Season 4, everyone agreed the character’s story had run its course.

Ultimately, it felt like the most powerful creative decision would be to end Alison’s arc at the moment when she had finally achieved self-empowerment.

The impact of her loss will be felt as the series concludes next season. We thank the many fans who embraced the character of Alison and especially thank Ruth for her indelible work over the past four seasons.

Related: The Affair Season 4 Episode 9 Review: Into the Ocean

Wilson's character, Alison was confirmed to have died on The Affair Season 4 Episode 8, and her death was initially ruled suicide. 

However, The Affair Season 4 Episode 9 showed two different takes on the death, with one seemingly being a fantasy about Alison getting her happy ending, and the other showed her being killed by Ben, her boyfriend. 

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Paul Dailly was an Associate Editor for TV Fanatic.Follow him on X.