Sharon Osbourne partly blames herself for Ozzy Osbourne's relapse.
The TV personality kicked her husband out of their home in 2012 and threatened to divorce him when she realised he had relapsed into drink after seven years sober, but on reflection she thinks she should have spotted the warning signs earlier.
She told radio host Larry King: "It was hell - the loneliest three months of my life.
"The frightening thing for me was that I didn't see it. So where was I for a year and a half?
"I was just self-obsessed with my work. I didn't see, so it kind of kicked me in the bum."
Sharon added she found out about Ozzy's relapse on the day before their 30th wedding anniversary after a friend tipped her off.
She added: "He was drinking when he came home, but we lead such busy lives that all I saw was bad behaviour, I never saw the drinking.
"I left him and told him I couldn't go through this again, I just couldn't, and he promised he would work his programme.
"He wasn't going to meetings, he wasn't working his steps, and he slipped, he slipped for a year and a half."
Ozzy, 65, has now celebrated 12 months sober and Sharon, 61, says their union is stronger than ever.
She said: "I cannot imagine life without him. He's fun, very, very funny, he's a very good father, a pushover, he's a softie you know."

Sinitta is godmother to Simon Cowell's newborn son, Eric.
The 'So Macho' singer is a close friend of the TV mogul - and even dated him at the start of her career - and announced she will be godmother to the new arrival, who was born yesterday (14.02.14) in New York to Simon and his girlfriend, Lauren Silverman.
Sinitta wrote on Twitter: "Sitting in. Fancu bar in london with a very handsome man waitinf to hear my God son has been born, bit tipsy,but not ruined..too late to fly (sic)."
The 45-year-old star alluded to the fact she had wanted to fly out for the birth, but had left it too late. However, she said Simon was keeping her informed from the US about how the birth was going.
Simon, 54, had been in the UK filming a new series of 'Britain's Got Talent' but flew to New York on a private jet as soon as he heard Lauren had gone into labour.
He was pictured smoking outside Lenox Hill Hospital in Manhattan shortly before the baby boy was delivered, weighing six pounds and seven ounces.
Simon later tweeted: "Very happy to say Eric was born at 17.45pm. Healthy and handsome.
"Lauren in great shape. Thanks for all of your kind messages."
The baby is named Eric after Simon's late father, who passed away in 1999.

Kim Kardashian received "a thousand roses" from Kanye West for Valentine's Day.
The 'Keeping Up With the Kardashians' star's rapper fiancé delighted her by filling an entire room with red roses to celebrate the romantic day yesterday (14.02.14).
Alongside a picture of her with the flowers, she posted on Twitter: "A thousand roses! Nothing better than being with my love on Valentine's Day! Happy Vday dolls!"
Kim, 33, flew out from Los Angeles to Baltimore on the East Coast of the US with the couple's daughter, North, eight months, to be with Kanye, who performed in the city last night as part of his Yeezus tour.
She posted a photo of her and her fiancé on Instagram with them both sitting on a golf cart, as well as another of Kanye's performance.
She captioned the latter: "My date with Yeezus tonight."
Kim and Kanye, 36, are currently planning their wedding which will take place in France this spring, and the reality star has also recently said she is eager to have another baby.
She said: "I always wanted about six [children]. After having [North], I would have a million."

Miley Cyrus appeared through a replica of her own mouth to open her Bangerz Tour in Canada last night (14.02.14).
The 'We Can't Stop' star entered through an opening in a picture of her face and slid down a huge pink tongue extending to the stage on the opening night of the tour in Vancouver.
The controversial singer showed off plenty of sexy dance moves including Twerking - the butt shaking dance she popularised last year - up against a giant blue teddy bear, rubbing her crotch, riding a hot dog and sucking on a foam finger.
The 'Party in the USA' hitmaker opened the show in a red studded two-piece, before changing into a leotard printed with marijuana leaves and wearing a golden cannabis leaf around her neck, which she paired with white cowboy boots.
She admitted her nerves before the performance, tweeting: "I don't know if it's Valentines Day or #BangerzTour but I'm most definitely having a panic attack."
However, she showed no signs of losing confidence as she sang tracks from her 'Bangerz' album including 'Love Money Party', '4X4', 'FU' and 'Adore You', surrounded by dancers dressed in many outrageous costumes including as the Statue of Liberty, Mount Rushmore and former president of the US, Bill Clinton.
Despite giving such a visual performance, Miley has previously claimed it is all about her songs.
She said: "It is fun for people to walk out and be like 'Oh my god did she just do that?' and there's so much I love about shock value, but then I really want the core to be about the music."

James Blunt loves performing in China - because he feels "tall".
The 'Bonfire Heart' hitmaker - who is just 1.7m tall - claimed he "feels better" about himself when surrounded by his fans in the far East because they are usually smaller than him, which is very unusual.
He said: "I've just finished playing China, great fun, for me I like playing there because in Europe I'm a very small person, but over there I'm tall and it makes me feel better about myself."
While James was overwhelmed by the response to his concerts in China, he admits his record sales didn't match up.
Asked if he is big in China, he told BBC Radio 2: "Huge there! Oh sales? No, the Chinese don't buy much music, I think one person buys the album and distributes it very effectively among his friends because they knew every single word to every song, which was a great pleasure, I was grateful they were but I was thinking, 'Hang on - we've only sold one album here'."

Lorraine Kelly is leaving 'Daybreak' to focus on her own show.
The ITV presenter will stay with the channel for another three years, but now host her 'Lorraine' programme five days a week - and she is "delighted" at the new deal.
She said: "I'm delighted to have signed up for another three years at ITV.
"I thought long and hard about staying on at both shows but have decided I really want to focus on my show.
"New-look Fridays will be filled with fashion, film news and lots of fun - I can't wait."
Currently, Lorraine hosts her show Mondays to Thursdays, while Kate Garraway takes her place on Fridays.
The new deal will see the 54-year-old star take over for all five days until at least 2017, and her replacement is set to be revealed next week.
Next year will see Lorraine celebrate 30 years with ITV, and her agent Prof Jonathan Shalit has praised the new agreement and insists it makes her one of daytime TV's greatest stars ever.
He said: "This deal makes Lorraine the all-time Queen of Daytime."

Claudia Winkleman admits she is "too orange" but defends her style.
The 'Great British Sewing Bee' host know she can sometimes look too "tanned", but insisted she "couldn't care less" about what people think about her image.
She told The Sun newspaper's TV Magazine: "At home, I never wear make-up, then at work I get myself tanned up so I look like I've been grilling myself in the sun for three weeks.
"I go for a fight-with-an-eyeliner look and an enormous fringe I can hide behind. I have actually just cut my fringe as my producer told me off saying it looked ridiculous.
"I know I'm too orange, but I couldn't care less. It's my look and I'm happy with it. The fan mail I get is generally from young boys who write in green ink. Whatever they say, I take as a compliment."
Claudia also claimed she doesn't enjoy watching herself on TV, insisting she has a "very shrill voice" which makes her self-conscious.
She said: "I never watch myself on television. I'd rather eat dung. I can't do it, because I find myself incredibly annoying. My voice is very shrill. I'm phobic about it."

Gary Oldman says Clint Eastwood gave him his best filmmaking advice.
The 'RoboCop' star made his directorial debut in 1997 with gritty drama 'Nil by Mouth' and credits the screen legend - who is also a successful director - for helping him make the move behind the camera.
He said: "Clint Eastwood gave me the best advice when I directed, 'Get more sleep than your actors.' "
The 55-year-old star also says he was shocked when he met another huge screen star, Sir Michael Caine, because he didn't expect his reaction.
He told Us Weekly magazine: "When I first met Michael he asked for an autograph for his daughter."
In 1986, Gary won widespread critical acclaim for his portrayal of late Sex Pistols star Sid Vicious in biopic 'Sid and Nancy' but he insists he doesn't even remember the role which brought him to fame.
He said: "I don't' remember doing 'Sid and Nancy'. I've wiped that from the hard drive."

Colin Farrell was terrified of sober sex.
The 'Winter's Tale' star - who has been clean for eight years - admitted he initially struggled to get used to making love without alcohol and was scared by the change.
Speaking to ELLE magazine, he said: "I worried I wouldn't be able to talk, full stop. I hadn't uttered a word sober in about 15 years ... I made love to a woman about two and a half years after I got clean, and it was one of the most terrifying moments of my life.
"It was in the afternoon. The windows and the curtains were open. It was lovely, and, to be crass, it wasn't f**king.
"She was very gentle. But it was terrifying. Because I was just used to drunkenness and dark rooms and clubs and toilets and wherever."
The 37-year-old actor also discussed a fling which led to the filming of a sex tape - which he blocked from release via an injunction - and admitted he is worried his mother could accidentally stumble on it.
He added: "It certainly wasn't a validation of my prowess. The whole thing was horrifying. You know, Press Record. Taboo.
"Isn't this interesting? I was deposed for four hours explaining why I didn't want it to be released.
"God forbid it's an On Demand movie in a hotel room and my mother says, 'Oh, I haven't seen this work of my son's', and hits purchase."

Niall Horan's trip to Chelsea Football Club had to be kept a secret, says Jose Mourinho.
The One Direction heart throb has been given use of their recovery unit following major knee surgery, and the club's manager has admitted it was a struggle to hide what was happening from the band's loyal fans.
Speaking to The Sun newspaper, he said: "I was worried for a while because I thought, 'Nobody can know that Niall is at Cobham - we'll have thousands of girls at the gates!'
"Niall had seriously big surgery - an injury any football player would be scared of suffering. He really needs a good medical department.
"My kids are big fans but they haven't been to the training ground to see him - he has a lot of work to do."
Jose's children are the reason behind Niall's connection with the club, prompting him to agree to the arrangement.
A source previously said: "Niall has been welcomed into the club as if he's a Chelsea star himself.
"It's the best possible place for him to get the rehab he needs on his knee because he needs to be fighting fit for the band's stadium tour later this year."

Simon Cowell's son was "the perfect Valentine's gift".
The media mogul was with his partner Lauren Silverman when she gave birth to their first child Eric yesterday (14.02.14) and it is said he was "beaming" as he was on hand for the new arrival.
An insider told the Daily Mirror newspaper: "You couldn't take the smile [off] Simon's face.
"he was beaming from ear-to-ear. Lauren was so happy to see him when he walked in. It is the perfect Valentine's gift."
The TV talent show guru had to leave the London auditions of 'Britain's Got Talent' to fly to New York in time for the birth, and he faced a real "race against time".
A source added: "It was a race against time. Normally when a dad-to-be gets the call, they are just a few miles away - not the other side of the Atlantic."
Simon, 54, took to Twitter to reveal the moniker he and Lauren has decided on for their baby boy - confirming he would be named after the star's late father.
He tweeted: "Very happy to say Eric was born at 17.45pm. Healthy and handsome."
He later added: "Lauren in great shape. Thanks for all of your kind messages."

Prince will present the first prize at this year's Brit Awards.
The iconic pop star will be with his new all-female backing band 3RDEYEGIRL to kick off the show in style on Wednesday (19.02.14) when he makes his first appearance at the annual bash since 2006.
Speaking to The Sun newspaper, an insider said: "Prince is a big-name addition to this year's show.
"We've seen the massive crowds he has drawn at his recent London gigs so it's definitely going to be a highlight."
With the 'Purple Rain' singer signed on to present the first trophy at the ceremony next week, he could replicate his 2006 appearance by also performing at the event.
He will join the likes of Kylie Minogue when he hands out a gong, and he could share the stage with some huge names if he decides to play a track live.
So far, Katy Perry, Lorde, Disclosure, Pharrell Williams, Arctic Monkeys, Rudimental, Ellie Goulding and Bastille are a confirmed as performers for the event at London's The O2 Arena.
Meanwhile, James Corden will make his fifth and final appearance a the Brits, making him the show's longest-running host.