Lindsay Hubbard and Carl Radke's summer lovin' has fizzled out.

The Summer House stars have called off their engagement less than three months before they were supposed to tie the knot in a Nov. 17 wedding in Mexico, according to multiple reports.

"Carl told Lindsay he couldn't move forward with the wedding," a source told Entertainment Tonight on Aug. 31. "The breakup was filmed and will most likely play out on the next season of Summer House."

Page Six also confirmed the split. E! News has reached out to Bravo for comment.

Lindsay and Carl got engaged last summer when he got down on one knee in Southampton, NY while filming season seven of the Bravo series. Their plans to marry after less than a year of dating sent shock waves through the cast, with the news even causing a bitter rift between Lindsay and her longtime BFF Danielle Olivera, who thought the couple was moving too fast.

Just two weeks ago, Lindsay, 37, and Radke, 38, celebrated her bridal shower in NYC surrounded by their costars, including Danielle, Amanda Batula, Ciara Miller, Gabby Prescod and Samantha Feher. 

Earlier this year, the former couple opened up to E! News about planning their "big, big" wedding this fall.

"It's taken this long for us to come together," she exclusively shared in February, "I don't think there is anybody in our lives that would let us get away with a small wedding, including Bravo."

The publicist also confirmed plans to film the nuptials for season eight. "If we were just getting married with all of our guests and friends that would be one thing," she continued, "but when you're considering the idea of filming it, there's another level of criteria that you have to get checked off."

Carl agreed that fans deserved to see their happy ending after going from friends to fiancés.

"It would be crazy to me—from season one till now—to all of a sudden not see our wedding," he added. "We've been such big parts of the show. You've seen our journeys and now we're together and you're going to see the engagement this season and then for them not to film?"

Keep reading to see more celebrity couples who went their separate ways in 2023.

The Summer House stars shocked fans in August when they reportedly called off their engagement just two and a half months before their Nov. 17 wedding in Mexico. Neither has spoken out on the relationship drama or why they broke up.

The pair split just months after welcoming son Leodis Andrellton Jackson, multiple outlets reported in August.

The pop star and actor broke up after one year of marriage, multiple outlets reported Aug.16.

The Canadian Prime Minster announced on Aug 2. that he and his wife decided to separate after 18 years of marriage.

The mom of Beyoncé and Solange filed for divorce from the actor on July 26 after eight years of marriage. 

"Yes, a few months ago Rosi and I ended our engagement," Rauw Alejandro wrote in Spanish on Instagram Stories July 26. "There are thousands of problems that could cause a breakup, but in our case it was not due to third parties or infidelity."

The Growing Up Chrisley star and the influencer broke up nine months after their October 2022 engagement. "Everybody has been asking a lot of questions regarding Emmy and myself," Chase wrote on his Instagram Story July 25. "We both and [sic] agreed to part ways and move on with our lives separately. Thank you for respecting our privacy."

"We have made the difficult decision to divorce," the pair said in a joint statement to Page Six July 17. "As two people that love and care for one another very much, we politely ask for respect of our privacy at this time as we navigate this new phase of our lives."

After two years of marriage, the singer and real estate agent separated, E! News confirmed.

The Bear star and Californication actress split up in May 2023 after a little more than three years of marriage.

The couple called it quits after 18 years of marriage, with a rep for the Yellowstone star telling E! News in May, "It is with great sadness that circumstances beyond his control have transpired which have resulted in Mr. Costner having to participate in a dissolution of marriage action."

After 11 years of marriage, The Real Housewives of Atlanta alum filed for divorce from the former NFL player in May 2023.

In the divorce proceedings, Kim—who shares Kroy Jr., 11, Kash, 10, and 9-year-old twins Kane and Kaia with Kroy, and is also mom to Brielle, 25, and Ariana, 21—is also requesting primary physical custody of the kids and joint legal custody.

Ultimately, they reconciled.

Six months after the duo sparked romance rumors, a source confirmed to E! News in May that the singer and the music producer broke up.

In April, the singer filed legal paperwork to request full physical custody and joint legal custody their son Ender, who she welcomed with the film producer in 2021. "The split was amicable," an insider told E! News at the time, "and they plan to co-parent." 

The model revealed in April that she and the Magic Mike actor, who share daughter Luca together, were divorcing after two years of marriage. "Alex and I have made the very difficult decision to divorce," Toni wrote on her Instagram Story. "We will continue our relationship as friends and co-parents to our angel Luca."

In court documents filed in April and obtained by E! News, the Beverly Hills, 90210 actress cited "irreconcilable differences" as the reason for her divorce from her husband of 11 years. She listed Jan. 15, 2023 as their date of separation.

A source confirmed to E! News in April that the Top Gun: Maverick actor and the model had parted ways after three years of dating.

The pop star and the actor's love story came to an end in April, when news surfaced that the notoriously private couple had broken up after six years of dating. 

The Bachelor star confirmed he was single in April, eight months after rekindling his on-and-off romance with the lawyer. 

The Survivor contestants broke up after seven years together. "Telling my kids that baba & daddy are separating will always hurt," Ricard tweeted in April, alongside a famiy photo that included their kids Aurelia and Lucia. "We had a great run. So much love, two beautiful babies & two angel babies."

The actress and the former CAA agent broke up after more than 11 years of marriage. "It is with a great deal of care and consideration that we have made the difficult decision to divorce," they shared in a joint statement in March. "We have enjoyed so many wonderful years together and are moving forward with deep love, kindness and mutual respect for everything we have created together."

The Culpo Sisters star confirmed her split with the NFL player in March, calling herself "single" in a TikTok video. The couple were together for two years before parting ways.

The couple announced in March they were putting a pause on their relationship, sharing in a joint statement to E! News, "We have mutually decided to separate temporarily to work on ourselves, and on our marriage with the hope of building a stronger future. The plan is to come back together and continue to nurture our love for one another, and our family."

The TikTok star confirmed her split with the photographer in March, sharing in a TikTok, "I don't have a boyfriend anymore."

The Vanderpump Rules stars split in March, with him offering a public apology after cheating on her with fellow cast member Raquel Leviss.

"Most of all, I want to apologize to Ariana," Tom said on Instagram. "I made mistakes, I was selfish, and made reckless decisions that hurt somebody I love. No one deserves to feel that pain so traumatically and publicly."

Amid news of the affair, Raquel also issued an apology reading, in part: "There is no excuse, I am not a victim and I must own my actions and I deeply regret hurting Ariana."

The Real Housewives of Atlanta star's eight-year marriage came to an end in February, when her husband filed for divorce and cited in legal documents obtained by E! News there's "no reasonable hope for reconciliation." The couple's official separation date was listed as Feb. 19, 2023 in the filing.

Her rep confirmed in February that she split with her fiancé, and Avril went on to debut a romance with Tyga days later. 

The Cup of Jo influencer shared in a February blog that she and her husband separated after 13 years of marriage. The couple will "always be over-the-moon co-parents to our two beautiful boys" Toby and Anton, she wrote, though they "won't be married anymore."

The TikTokers announced their split in March. "We will always be there for each other and look fondly on the love we shared," they wrote on their respective Instagram Stories. "No one is at fault, and we came to this decision mutually."

The Real Housewives of Atlanta alum and her fiancé broke up about a year after they got engaged. The pair, who share daughter Emma, wrote in a February joint statement, "It is with deep sadness in our hearts that we have decided to end our journey as a couple."

(E! and Bravo are both part of the NBCUniversal family)