The year 2015 was all about endings for Dempsey. In January, three months before McDreamy was killed off Grey's Anatomy, the actor's wife Jillian Fink, a makeup artist, filed for divorce after 15 years of marriage. But by November, the estranged couple, who have three kids, was seen holding hands and are reportedly working on their relationship.

The low-key couple, who secretly wed in 2009, announced their split in January. Moore, who provided backing vocals to the rocker's most recent album, had posted a photo of their marriage license for their fifth anniversary in 2014, writing, "The best five years....".

The pair announced their split in March after 10 years of marriage, and things immediately got messy. According to Page Six, the celebrity chef and Law & Order: SVU alum broke up because of Flay's three-year affair with his 28-year-old assistant Elyse Tirrell. In June, Flay, who's been plagued by infidelity rumors for years, saw his Hollywood Walk of Fame ceremony hijacked by an airplane banner that read "CHEATER." Flay and March finalized their divorce a month later.

Cooper and Waterhouse kept their split under wraps for two months before news broke in March -- weeks after they attended the Oscars together as friends. The pair, who dated for two years, were also seen hanging out together, including at Coachella, afterward, but they're still just friends: Cooper is now dating model Irina Shayk.

The singer and Arnold Schwarzenegger progeny split in April after five months of dating. The breakup came a month after Schwarzenegger was photographed with another girl while on spring break in Mexico.

The couple, famous for their PDA-packed performances, broke up in April after almost nine months together. In June, Grande wrote an empowering essay about the double standard women face when it comes to relationships. "What I meant when I said what I said about not being Sean's ex is that I am tired of living in a world where women are mostly referred to as a man's past, present, or future PROPERTY/POSSESSION," she wrote. "I... do not. belong. to anyone. but myself. and neither do you."

The sports power couple announced their split in May the same way they announced they were dating: on Facebook. "After nearly three years together, Tiger and I have mutually decided to end our relationship," Vonn wrote. "I will always cherish the memories that we've created together. Unfortunately, we both lead incredibly hectic lives that force us to spend a majority of our time apart. I will always admire and respect Tiger. He and his beautiful family will always hold a special place in my heart."

A month after glamming up the red carpet at Cannes and six months after getting engaged, the actors ended their 18-month relationship in June. Actually, she did. Theron reportedly ghosted the hell outta Penn.

The model and Dancing with the Stars alum broke up in May after two years to focus on their careers. "Cody and Gigi want each other to be in a place right now that allows him to only focus on his music, fans, and new message, while she can focus and continue building her career," her rep said in a statement. The pair had broken up in May 2014 before reconciling.

The singer and former Miss Universe split in June after two years together. "We had a great, beautiful few years together, but it's been a crazy couple months and I wish the best to her for the future, but it's tough," Jonas told Extra. Culpo, meanwhile, coped on Instagram.

Spears ended her eight-month romance with Ebersol, a producer and the son of Dick Ebersol, in June. The singer then scrubbed her Instagram of photos of Ebersol, while he posted a video of himself snuggling up to a dog to "You've Got a Friend in Me." "If nothing else, I hope you're happy just in knowing that you made me happy. It is never lost on me the love with which I have been blessed. For that, I aim to live up to Colossians 3:12," he wrote.

Bennifer marked their 10th wedding anniversary with a split, announcing their divorce the next day in June. Since then, Affleck has been besieged with reports that he had an affair with their nanny Christine Ouzounian, but has not commented on them. The actor still lives in a separate house on the family's property to ease the transition for their three kids.

Fed up with Disick's partying, not to mention photos of him canoodling with an ex-girlfriend in Monte Carlo, Kardashian ended their nine-year relationship in July. The breakup was shown in the season finale of Keeping Up with the Kardashians in October. "I love Scott, but I've been dealing with this for so long, it's definitely not good for me. At this point, I'm really just trying to focus on me and the kids and make them the priority," she said.

The Brits, who have a daughter, broke up in July after four years together. "It's been really quite overwhelming recently, just with the volume of everything going on," Miller told British Vogue later. "Everything is shifting. It's actually been the sh--tiest year, and amazing. It's always yin and yang. I feel like if you're excelling in one area, it's hard to manage both and I do feel like the work is going really well."

The country superstars swiftly divorced in July after four years. "This is not the future we envisioned," they said in a statement. "And it is with heavy hearts that we move forward separately." Shelton soon moved onto his fellow newly single Voice coach Gwen Stefani, but everything is cool between him and Lambert. "Marriage is a tough business, and we gave it our best college try," she told Cosmopolitan. "I had a great relationship with an amazing man, so I know what good is. I have a great launching pad for the future. I will never take that for granted."

The No Doubt singer's simple kind of life was over in August when she filed for divorce after 13 years of marriage -- 19 years together overall -- and three kids. Rossdale reportedly cheated on Stefani with their kids' nanny Mindy Mann for three years. While he has kept quiet, Stefani, who's now dating Blake Shelton, all but confirmed the rumors, pouring her heartbreak into her new single "Used to Love You." "Everybody knows, pretty much, what happened to me," she told radio host Elvis Duran.

The country star announced in August that she and her manager-husband had separated after 26 years and one son together. Blackstock, whose son Brandon from a previous relationship is married to Kelly Clarkson, runs Big Machine, which reps McEntire, Clarkson and Blake Shelton.

Months after abruptly quitting One Direction, Malik called off his two-year engagement to the Little Mix singer in August, which reportedly left her "devastated." Malik is now dating model Gigi Hadid, who had two of her own breakups this year.

The on-again, off-again inter-species couple became off again in August while promoting their new show The Muppets. Kermit quickly moved on to Denise, who's also a pig (he's got a type, clearly) and works in marketing for Miss Piggy's late-night show. Not awkward at all. Piggy seems to have a change of heart recently, calling Kermie from the other side.

Fox filed for divorce from the Beverly Hills, 90210 star in August after five years of marriage. The couple, who started dating in 2004 and have two sons, had broken up before, briefly splitting in 2009. Flipping Out fans were not that surprised by their split: Green was weirdly annoyed when his wife was mentioned during his appearance on the show a month prior.

Five months after denying reports that they had broken up, the couple of 18 years announced the sad news in September. But they remain on good terms. Weeks later, while accepting his Emmy for Mad Men, Hamm thanked the actress in his speech, and the two have since been seen out together, sparking rumors that they're back on.

So much for her happy ending. Lavigne announced the end of her two-year marriage to the Nickelback frontman in September. "It is with heavy heart that Chad and I announce our separation today," the singer wrote on Instagram. "Through not only the marriage, but the music as well, we've created many unforgettable moments. We are still, and forever will be, the best of friends, and will always care deeply for each other. To all our family, friends and fans, thank you sincerely for the support."

The actors called it quits in September after two years of dating -- a relationship that started because of Instagram. "I followed him on Instagram and I thought something he said was really funny," Seyfried told Vogue in June. "It was a picture of a snail, and the caption said, 'F---ing MOOOOOOOOVE.' It made me laugh out loud so I texted him."

The funny couple split in September after two years together. Though Poehler and Kroll were private about their relationship, the SNL alum did write about her beau -- never mentioning him by name -- in her 2014 memoir Yes Please. "I have a boyfriend who knows how to settle me. He puts his hand on my chest and tells me boring stories," she wrote. "On one of our first nights together, I woke up apologizing for my snoring and he pulled out two earplugs he had worn to bed so he could hear what I was saying. It was one of the most romantic gestures I have ever seen."

The Big Bang Theory star filed for divorce from the tennis player after 21 months of marriage in September. Cuoco quickly dropped "Sweeting" from both her personal and professional names, and both deleted all photos and mentions of one another on their social media accounts.

The six-time Oscar nominee divorced her venture capitalist husband of nine years in September after quietly separating earlier this year. The couple wed in a small ceremony in 2006 in Maine, where they had resided.

The Black-ish star's wife and high school sweetheart filed for divorce in September after 20 years of marriage. In her papers, Stewart, who shares two children with Anderson, revealed that they had separated in April 2014.

The totally adorable couple, who met on the set of The Amazing Spider-Man in 2011, split for good in October after a rough year. They had taken a break earlier this year due to their work schedules -- and Stone attended the Oscars where she was nominated for Birdman with her mom -- before reuniting.

The third time was not the charm for Berry. She filed for divorce from Martinez, with whom she has a son, in October after two years. The two started dating in 2010 after meeting on the set of Dark Time, and Martinez notoriously brawled with Berry's ex-boyfriend Gabriel Aubry over Thanksgiving weekend in 2012.

The model quickly moved on to Jonas after breaking up with Cody Simpson, but it was not to last. The pair split in November after just five months together. Hadid has now moved on to Zayn Malik.

The couple's separation was revealed in November after the director was photographed out with model CJ Franco while Beckinsale was overseas filming Underworld 5. They had met on the set of the original Underworld and Beckinsale left her longtime boyfriend Michael Sheen for Wiseman, whom she married in 2004.

The Friends star and Snow Patrol guitarist, who got engaged in June 2014, broke up in November. The couple had reportedly been attending couples counseling before ultimately deciding to go their separate ways.

The Real Housewives of Beverly Hills star and the prolific songwriter called it quits in November after nine years together and four years of marriage -- suspiciously on the night of the season premiere of Real Housewives. "Sadly we have decided to go our separate ways," they said in a statement. "We've shared nine beautiful and joyous years together. During that time we experienced love, friendship and the inevitable challenges that come with managing a marriage, careers, blended families and health issues."