When Brenda Coffee married her charismatic boss Jon Philip Ray, 14 years her senior, the wide-eyed 21-year-old imagined an exciting future of love, wealth and shared adventures.

She could barely believe that the entrepreneur, who would go on to create the first personal computer, had asked her to join him while he worked hard and played hard, founding ground-breaking companies and chasing thrills in exotic parts of the world.

Little did she know that the man she regarded as a creative genius, would become a tortured soul who, at his lowest ebb, literally ‘broke bad’ - manufacturing cocaine in the basement of their sprawling city home.

Coffee nicknamed the secret chemistry lab ‘the dungeon’ after losing her adored husband to obsession and addiction within its darkened walls.

Speaking exclusively to the Daily Mail, she said, ‘The lab was his mistress. He was a shadow of the man I fell in love with.’

Now, almost three decades after the marriage ended with Ray’s death from lung cancer in 1987 she has written a memoir, ‘Maya Blue,’ about their turbulent relationship and her widowhood at the age of 38.

The book chronicles her raw attraction to the NASA engineer-turned-tech pioneer, his seminal innovations, their mutual passions and, ultimately, his personal tragedy.

‘I’d kept journals, but never publicly written about what happened before,’ the 75-year-old says, adding that she wanted to tell Ray’s story while showing herself to be a survivor.

Pictured: Brenda Coffee today. Referring to the cocaine addiction of her first husband, Jon Philip Ray, a tech mastermind, she says, 'He was a shadow of the man I fell in love with.’

Pictured: Coffee's husband, Jon Philip Ray, who invented the world's first personal computer in the early 1970s. He hid his drug addiction behind his brilliant mind, good looks and charisma.

 To that end, she named the memoir after the rare and enduring pigment found in Mayan ruins in the Yucatan Peninsula – a place where the intrepid couple traveled many times.

Their romance started in the late 1960s when Coffee worked in the accounts department of Ray’s computer company, The Datapoint Corporation, based in San Antonio, Texas.

At the time, he and his partner, Gus Roche, were developing machines to replace mechanical teletypes, the electro-mechanical typewriters used to send and receive messages over electrical communications lines in the early days of computing.

Coffee, a part-time journalism student at San Antonio’s Trinity University, had been an employee at Datapoint for just over a year when she got chatting to Ray in a bar after work.

She had met him in the office before — in her book, she describes him as ‘gorgeous,’ ‘magnetic’ and ‘a mixture of a hip Clint Eastwood and a young Gary Cooper’— but, now, she had his undivided attention.

They talked about everything from movies and hot air balloons to the design of the nautilus shell. Newly divorced, he walked her to her car and, as he held the door open, said, ‘I won’t date employees.’

Coffee resigned the next day. ‘He had a magic about him, and I wanted to be the only woman that he would ever want or need,’ she tells the Daily Mail.

‘Here was this sophisticated man featured in Business Week and The Wall Street Journal and I thought, “What do I have to do to become the one?” So, I decided that regardless of whether it was - dangerous, adventurous, sexual or illegal - count me in.”’

Things moved fast and the couple began living together within two weeks. They had a low-key wedding at a judge’s office with only his legal secretary as the witness. Coffee’s father had died on her 13th birthday, and she had a strained relationship with her mother who suffered a mental breakdown and then dementia.

‘Philip was raising a second round of venture capital,’ Coffee recalls. ‘As soon as we got married, I took him to the airport while I went to take my final exams. It was business as usual.’

In 1970, Ray and Roche hit paydirt. Their team created the world’s first personal computer with its own data processor, display, keyboard, internal memory, and capacity for mass storage.

It was a triumph of innovation and, after the units started selling in 1971, the cash flowed in millions.

Ray and Coffee spent their leisure time scuba diving, racing Porsches at sports car events, hiking through the jungles of Central and South America, even digging with spades for minerals and crystals.

‘We became adrenaline junkies,’ Coffee says. ‘I was proud to be Philip’s wife. Everybody who met him would cluster around him like children at story time.’

Pictured: Ray and Coffee near the beginning of their 17-year marriage. ‘He had a magic about him, and I wanted to be the only woman that he would ever want or need,’ Coffee says of her first husband.

Pictured: Coffie as a young woman in the early 1970s, soon after marrying Ray who was 14 years older than her. ‘We became adrenaline junkies,’ she says.

Pictured: The ground-breaking Datapoint 2200 computer that Ray and his team invented at their company, The Datapoint Corporation, based in San Antonio, Texas. 

While Coffee didn’t work for her husband’s company anymore, she was a powerhouse behind the scenes. She learned the ins and outs of the business, courting investors and supervising production in an unofficial role.

Then, about two years into her marriage, she was forced to step in and cover for Ray after what she describes as ‘the valium incident.’

‘It was rare for him not to take valium every night to go to sleep,’ she says. ‘He was just so brilliant, his mind was always working.’

One time, however, they forgot to renew his prescription and, according to Coffee, Ray unintentionally went cold turkey for a week.

He woke up one morning and could barely speak. The doctor advised them to go to a psychiatric unit, where he started having seizures.

‘I watched them drag him away, ‘Coffee recalls. ‘Here was this man who was revered — one student wrote in his high school yearbook, ‘If the world is coming to an end, I'm going to beat a path to Philip Ray’s door because he'll find a way out’ — and it was heartbreaking.’

For the next six months, without valium as his crutch, Ray suffered from debilitating depression, unable to leave their bedroom at times.

Only a handful of executives at the Datapoint Corporation knew he was sick, and Coffee managed his side of the business herself.

Thankfully, his health improved with treatment and the couple invested in a historic, 6,400 square foot mansion amid 22 acres on a hill overlooking San Antonio.

Coffee was in charge of the renovations, slowly improving the property between hosting lavish parties including an annual New Year’s Eve party with fireworks that lit up the skies.

But it soon became clear that Ray had simply replaced one addiction – valium – with another...cocaine.

He decided to experiment with making cocaine after reading a cover story in Time magazine about the pricey drug no longer being limited to the Hollywood elite.

‘It said that Mom and Pop America were taking snorts of coke, and they had their own dealers,’ Coffee recalls.

Ray was intrigued, ruminating on the dangers of ordinary people associating with drug dealers and getting caught up in customs crime.

‘He said, “Surely, someone’s figured out how to make this stuff themselves,”’ Coffee says.

Ever the inventor, he took on the research. The project, she says, was ‘his own, personal Rubik’s cube.’

Before long, he had set up a full-blown organic synthesis chemistry lab in the basement complete with glassware, heating and cooling devices, and other equipment for separating, purifying and characterizing compounds.

Ray spent his days and nights in what Coffee came to call, ‘the dungeon.’

Pictured: Coffee poses on a Porsche Spyder in 1972. She lived the high-life with Ray who shared her passions for travel, geology, car racing and scuba diving.

Pictured: The sprawling three-story house in San Antonio, Texas, where Coffee lived with Ray. He set up a chemistry synthesis lab in the basement where he manufactured his own cocaine in a scene straight from 'Breaking Bad.'

He cut himself off from his wife and the outside world, intent on creating the powder that ‘everybody wanted to try.’

It was a process of trial and error. Coffee says she was terrified that he would injure himself or blow up the house.

In one chapter of ‘Maya Blue,’ she describes hearing breaking glass and a loud thud. She rushed to the lab to find a strange liquid seeping into the carpet and Ray’s clothes scattered on the floor.

‘It’s as though his flesh and bones have dissolved in the ten seconds it took me to sprint downstairs,’ she writes.

The accident turned out to be a chemical spill. Coffee eventually found Ray standing naked in the shower with the water running. He held a wire brush in his hand and was busy scrubbing the burned pieces of flesh from his leg.

He calmly told her to fetch some towels and hydrogen peroxide, insisting that he couldn’t go to the hospital because too many questions would be asked.

‘Technically, it’s nothing illegal,’ he said. ‘But it’s complicated.’

If Coffee thought the spill would deter Ray from continuing with his quest, she was disappointed.

Before long, he was making teaspoons of 100 per cent pharmaceutical cocaine – a potency confirmed by a doctor friend who had access to drug-testing equipment.

‘As soon as he knew he’d succeeded, he said, “I’m going to see what all the fuss is about,’” Coffee said.

It was the beginning of an addiction that wrecked both their lives. Ray would get high on cocaine and use alcohol to bring him down.

Some early mornings, Coffee drove to the convenience store to buy him a gallon of cheap red wine to drink after completing a binge — anything to try and get him to rest and become more stable.

‘I let him pressure me into going because, if I don’t, he will and he’s in condition to drive or navigate the busy access road on the freeway,’ Coffee writes in her memoir.

He would stay awake hours, demanding marathon sex sessions in between furious arguments with his wife. Coffee recalls how he once tried to choke her in a drug fueled rage before coming at her with a handgun and firing a bullet while she cowered in fear.

‘I have only one option,’ she writes. ‘I shove open the second-story bathroom window and, without hesitating, leap into the night, hoping the tree outside will break my fall.’

Thankfully, she escaped with only a twisted ankle. She said she thought about leaving because, although he tried to quit, she realized he couldn’t.

However, her hands were tied because she had no money of her own. Besides, she admitted that she still loved him.

Coffee knew that none of this was sustainable – one way or another her husband’s addiction had to end. She couldn’t have predicted that it would take a fatal disease to happen.

Ray, who had aways been a heavy smoker, was diagnosed with Stage Four lung cancer in the mid-1980s,

In a bitter irony, the death sentence was delivered just a few years after he’d used his laboratory skills to invent an early e-cigarette designed to wean people off nicotine.

Coffee called the process ‘vaping,’ coining the phrase used today. Ray’s company, Advanced Tobacco Products, was later bought by the firm that manufactures the Nicorette range in a deal worth $270 million.

Pictured: Coffee with her dog today. She still lives in San Antonio, Texas, from where she runs a successful blog aimed at women over the age of 50.

Pictured: Ray, who died of lung cancer at the age of 52. Coffee says she fell in love with his movie star good looks which were a 'mixture of a hip Clint Eastwood and a young Gary Cooper.'

Pictured: Ray, a former NASA engineer, became a titan in the tech industry. He worked hard and played hard, almost losing it all to addiction.

Ray spent tens of thousands of dollars chasing a cure by taking part in clinical trials but ultimately died in 1987 within 12 months of his cancer diagnosis. He was just 52.

It has taken decades for Coffee to come to terms with Ray’s loss and to process the tumult of the marriage that preceded it.

She traveled, she wrote business plans for entrepreneurs and, nine years after Ray’s death, married her second husband, James Coffee, an attorney. Sadly, that union too ended with his death in 2010.

Coffee finally decided to publish her memoir after launching a successful blog in 2016 about her unusual life and observations aimed at women over 50.

She reflected, ‘I was worried that, by telling my story, it would be like I was betraying Philip.’

In truth, writing the memoir felt more like penning a love letter to him because, despite everything, Coffee said, ‘I worshipped this man.’