Scheana Shay blasted Lisa Vanderpump for exploiting her “real-life pain” to build a TV career.

The “Vanderpump Rules” alum called out her former boss while looking back on her infamous affair with Eddie Cibrian.

As fans may recall, Shay’s 2006 dalliance with Cibrian became a hot topic after Vanderpump introduced the “Good as Gold” singer to Cibrian’s ex-wife, Brandi Glanville, in a 2013 episode of “The Real Housewives of Beverly Hills.”

“She low-key used my real-life pain to launch her TV empire — and what an empire she has,” Shay told Us Weekly in an interview published Tuesday.

In Shay’s new book, “My Good Side,” she claims Vanderpump knew of her past affair with Cibrian, even though the mogul pretended otherwise on the reality show.

“She gaslit me about it for a decade instead of just coming to me in the beginning. That’s the thing with Lisa: She doesn’t make mistakes. She makes moves and then calls them coincidences,” Shay, 40, told Us Weekly.

Shay — who starred on “Vanderpump Rules” for 11 seasons before the network decided to revamp the series with fresh faces last November — went on to explain that her relationship with Vanderpump, 64, “changed” for the worst after she “stopped following [Vanderpump’s] orders.”

“On Season 6 of ‘VPR,’ when James Kennedy told Katie Maloney that the outfit she was wearing wasn’t flattering, I got a phone call from Lisa. She didn’t want to fire James, so she needed someone to stand up for him [at a staff meeting],” Shay claimed to the outlet.

“If you go back and watch, I’m getting a death stare from Lisa, like, ‘When are you going to speak up? When are you going to stick to the script?’”

A rep for Vanderpump did not immediately respond to Page Six’s request for comment.

Elsewhere in the interview, Shay reflected on being branded with a “scarlet letter” early in her career because of her affair with Cibrian.

“I’m this ‘home-wrecking whore’ every day in the comments. He’s the one who lied. He is the one who cheated. He is the home-wrecker. I don’t want to say I was innocent, but … I was lied to by a 33-year-old man when I was 21, fresh out of college,” she claimed.

“I feel like people tend to forget that. They see 27-year-old Scheana on Season 1 of ‘Vanderpump Rules,’ and it’s as if the Eddie situation happened the year before. This happened in 2006. We weren’t on air until 2013. Looking back, were there red flags? Absolutely. I was leading with my heart and not my brain.”

Shay’s comments come not long after she made headlines for the revelation that her husband, Brock Davies, cheated on her while she was pregnant with their daughter, Summer Moon.

The singer addressed the bombshell excerpt from her memoir, telling Us Weekly that her husband’s affair “really felt like [she] got [her] karma” for her past.

“Did I deserve for [Brock to cheat on me]? No, but I told myself that I did,” she said.

“My Good Side” will be available July 22.