Country stars Blake Shelton and Miranda Lambert have been divorced for nearly three years now, but they're totally hung up on one another, by all reports! Their feud apparently flared up again just recently after Blake seemingly implied Miranda's recent negative press is "karma." But that's just the latest volley in the long-running war between these famous exes, and as this chronology shows, we may never know the truth about why Miranda Lambert and Blake Shelton broke up…

So, why did Blake and Miranda break up?

July 20, 2015: Blake and Miranda announce their divorce in a joint statement, saying, "This is not the future we envisioned, and it is with heavy hearts that we move forward separately. We are real people with real lives, with real family, friends, and colleagues. Therefore, we kindly ask for privacy and compassion concerning this very personal matter." The divorce is finalized that same day.

As Life & Style reported at the time, allegations of infidelity had hounded Blake for years. He reportedly had an inappropriate relationship with up-and-coming singer Cady Groves in 2011, for example.

July 21, 2015: Media outlets report conflicting reasons for the split. Page Six claims the couple had differing opinions about kids. ("[Blake] is eager to have children, but she really enjoys not being tied down," a source says. "I think they both were off on what the time frame would be.") Meanwhile, TMZ alleges Blake called the marriage off because he heard rumors Miranda had had an affair with a country singer.

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Nov. 6, 2015: After Blake hooks up with fellow The Voice coach Gwen Stefani, reports claim Miranda suspects they have actually been dating for a while. "Miranda believes something's been going on between these two for a lot longer than they're letting on," a source tells Hollywood Life. "She doesn't buy their story that it's totally brand new."

May 9, 2016: At a release party for his album If I'm Honest, Blake talks about his song "I Bet You Still Think About Me" and claims he's unsure why his marriage to Miranda failed.

"It's basically what it sounds like," the singer says. "At some point whether you go through a divorce or a breakup or whatever, once you get past the anger and the frustration of it all, you kind of go into the sad part of it where it's just like, 'Gosh, how come that didn't work out?'"

July 27, 2017: Billboard publishes an interview with Miranda in which she says her album The Weight of These Wings explains her breakup with Blake. "If you want to hear my side of the story or my opinion of what happened, it's all on there," she says. "There's no mystery anymore — take from it what you will."

Oct. 4, 2017: After sources say Miranda is tired of being the villain of the story, an insider tells Life & Style, "Blake blindsided her with the divorce and drove her out of their home. It hurt her badly and profoundly changed her outlook on life."

Nov. 29, 2017: Life & Style exclusively reports Blake and Miranda's feud is still going strong more than two years after their divorce. "There is still a lot of bad blood and unresolved anger between Blake and Miranda," a source says. "No one thinks they will ever be able to bury the hatchet and put their issues behind them." Meanwhile, another source reveals, "A whole new era of warfare is starting for Miranda and Blake."

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Dec. 4, 2017: A source exclusively tells Life & Style Miranda hasn't gotten over the divorce. "The cold-blooded way Blake blindsided her with divorce, drove her out of his life, and then shoved his romance with Gwen in her face is something that will scar her forever," this insider says. "It still burns her."

April 15, 2018: As Miranda performs "Keeper of the Flame" at the 2018 Academy of Music Awards, Blake and Gwen are "in her direct line of sight" but "[sit] still and [do] not exchange glances or words with one another the entire time" as a source tells In Touch.

April 25, 2018: After In Touch reports Miranda Lambert is dating a married man, Blake apparently subtweets her. "Been taking the high road for a long time. I almost gave up," he writes. "But I can finally see something on the horizon up there! Wait! Could it be?! Yep! It's karma!"

"Make no mistake — it was a direct shot at Miranda," an insider tells Life & Style of the tweet. "Blake is reveling in Miranda's humiliation now that she's been accused of having an affair with a married man, because he believes she cheated on him."

May 9, 2018: Team Miranda fires back at Blake's tweet. "For Blake to throw shade at Miranda is bulls–t," one of Miranda's close palls exclusively tells Life & Style. "Blake is calling her out for dating a married man? Let's not forget that Gwen Stefani was legally married [to Gavin Rossdale] when she started dating Blake!"