Entertainment TV Khloé Kardashian Works Out to Olivia Rodrigo Breakup Song After Tristan Thompson Split A source told PEOPLE on Tuesday that Khloé Kardashian and Tristan Thompson have broken up again By Ally Mauch Published on June 23, 2021 03:23 PM Share Tweet Pin Email Khloe Kardashian (L); Tristan Thompson. Photo: Rodin Eckenroth/WireImage; George Pimentel/Getty Khloé Kardashian is taking a page out of sister Kim Kardashian's book and working through her recent breakup with Olivia Rodrigo's hit album, Sour. Following news of her split from Tristan Thompson, the Keeping Up with the Kardashians star shared a video on her Instagram Story Wednesday showing her in the gym while Rodrigo's "Happier" blasted in the background. The sad tune is about a partner moving on with someone new. "She's beautiful/She looks kind/She probably gives you butterflies," the artist sings in Kardashian's Instagram video. The day prior, the Good American mogul, 36, posted a quote reading, "I whisper WTF to myself at least 20 times a day." Kardashian also "liked" a recent tweet referencing Thompson, 30, and their 3-year-old daughter True. Khloe Kardashian / instagram Khloe Kardashian / instagram Kim Kardashian Listens to Olivia Rodrigo's Breakup Anthem After Filing for Divorce from Kanye West After internet personality Tana Mongeau tweeted out "all i know to tweet about my birthday party last night is that tristan thompson was one of the first attendees like babe where's true," another Twitter user clapped back. "Shut the f--- up. this screams attention-seeking at it's finest bc you know damn well that man gon make headlines over anything pertaining to women. you're a bird! don't speak on True either weird a-- hoe," read the tweet, which Kardashian then liked. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. A source told PEOPLE on Tuesday that the couple had called it quits after reuniting last summer. "They are not together right now," a source said. "The ups and downs with Tristan were always very frustrating for Khloé. She has worked so hard to trust Tristan." A second source added that Kardashian and the Boston Celtics player "are trying to be on good terms," noting, "Khloé will do what's best for True." Reps for Kardashian and Thompson did not respond to PEOPLE's request for comment at the time. Khloé Kardashian and Tristan Thompson with True. Tristan Thompson/Instagram Khloé Kardashian and Tristan Thompson Split Again, Source Says According to TMZ and the New York Post's Page Six, which first reported the split on Monday, the couple broke up a few weeks ago, after Instagram model Sydney Chase claimed in April that she slept with Thompson in the fall while he was with Kardashian. (Thompson's lawyer denied the allegations at the time, according to TMZ.) The news of the split also comes on the heels of a Daily Mail report that Thompson was seen partying with multiple women in Los Angeles on Friday. Want to get the biggest stories from PEOPLE every weekday? Subscribe to our new podcast, PEOPLE Every Day, to get the essential celebrity, entertainment and human interest news stories Monday through Friday. And listen below for more on Khloé Kardashian and Tristan Thompson's split. Kardashian and Thompson, who went public with their relationship in September 2016, have weathered their fair share of drama in the public eye. In 2018, just days before Kardashian gave birth to True, news broke that Thompson had been unfaithful during her pregnancy. They spent the summer rebuilding their relationship, but in February 2019, they split again after reports surfaced that he had hooked up with Kylie Jenner's longtime best friend, Jordyn Woods. (Woods adamantly denied that they had sex but said they kissed after a long night of drinking.) In June 2020, sources confirmed to PEOPLE that the two were back on, and they spent most of the COVID-19 pandemic together in L.A. with their daughter.