The first bombshell came in late 2014, when the Captain & Tennille, pop stars of the 1970s whose biggest hit was “Love Will Keep Us Together,” announced they were divorcing.

The duo had been out of the public eye for years, living in Prescott, Ariz., but it was still a shock to legions of fans who adored them and their music.

And now, in “Toni Tennille: A Memoir,” Alabama native Toni Tennille goes even further, writing about a 38-year marriage to an “emotionally inaccessible” Daryl Dragon.

The two never shared a bedroom, and Tennille says their music was the only thing that kept them together for nearly four decades.

“It wasn’t easy to write, but I don’t regret it,” Tennille, 75, says from Florida, where she moved last year to be near her sister Jane.

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Toni, Jane, Louisa and Melissa Tennille were raised in Montgomery, where their father, Frank, was a big band singer who owned a furniture store, and their mother, Cathryn, was a TV pioneer, hosting her own afternoon show. Tennille writes mainly fondly of her upbringing, including two years of college at Auburn University, where a young Tennille made her mark singing with the Auburn Knights Orchestra.

“I loved Auburn, although women were a little held back then,” Tennille says. “We couldn’t wear pants, only skirts, stuff like that.”

She left Auburn after two years.

“My parents were having financial problems, and after I went home for my sophomore year, I just couldn’t afford to go back,” she says. “My father got a job in California, and we went out there with him.”

It was there that Tennille continued her music career, eventually meeting another musician named Daryl Dragon. The two hit it off musically, eventually touring together as keyboardists for the Beach Boys. When they started their own band, they took their name from the Beach Boys’ Mike Love, who would introduce Dragon as “the captain of the keyboards.”

The Captain and Tennille began churning out hits, including “The Way I Want to Touch You,” “Shop Around,” “Lonely Night (Angel Face),” “Muskrat Love” and “Love Will Keep Us Together.” They had a successful but short-lived variety series on ABC, and Tennille’s solo career included albums of standards and touring in the musical “Victor/Victoria.”

All along, though, according to her memoir, she was dealing with a marriage that really wasn’t a marriage and a husband who was more than quirky when it came to life outside of music.

Tennille says she decided to write about it when fans were curious about the divorce.

“I stayed out of the public eye in Arizona for a while because I needed to figure things out,” she says.

The memoir is co-written by Tennille’s niece Caroline, who is Jane’s daughter.

“I know the stories and the facts, but Caroline really has a knack for writing them down and putting them in context, like my growing up in the ‘40s and going to Auburn in the late ‘50s,” Tennille says. “I couldn’t have done it without her.”

“Toni Tennille: A Memoir” is filled with stories of the Captain and Tennille, not only about their marriage, but about their career, not the least of which was their squeaky-clean image, which wasn’t far from the truth. While other stars of the time dealt with drugs and other issues, Dragon and Tennille managed to steer clear of all of that.

Which made the marital revelations in “Toni Tennille: A Memoir” that much more interesting.

Tennille says she called Dragon as soon as she knew she was going to write the memoir.

“He said, ‘I’m not worried. You’ve always been a straight-shooter,’” Tennille says.

And despite a not-so-flattering portrayal of him, he has been supportive since the book came out, she says, calling her last week after she made an appearance on NBC’s “Today” show.

“He called me and said he had just seen the ‘Today’ show interview, and I said, ‘You did?’,” Tennille says. “He said, ‘I was proud of you.’ The interesting thing is he’s kind of excited about the new attention on the Captain & Tennille and our music.”

Tennille says she blames herself for staying in their marriage for almost 40 years. She came from a close-knit, loving family, while Dragon, the son of composer and arranger Carmen Dragon, did not.

“I always wanted to make sure that people understand that Darryl was never to blame for any of my decisions,” Tennille says. “He could just never be what I needed him to be, because he couldn’t express any emotion.”

These days, Tennille is content living in Lake Mary, Florida, where she continues to raise and show Australian shepherd dogs. She’ll make an appearance April 29 to announce the winners of the music categories for the Daytime Emmy Awards, but doesn’t know what might happen after that.

“I’m living a quiet life now – or at least I will be after the interviews for the book are over,” she says. “I really enjoy doing the dog stuff and living a normal life.”

Interview over, except for one more quick thing:

“Thanks so much,” Tennille says. “And War Eagle!”