Lindsay Hubbard is using her heartbreak to help others.

Nearly one year after the Summer House star's former fiancé Carl Radke broke up with her—ending their engagement three months before their scheduled vows—Hubbard revealed she's auctioning off her three wedding looks.

"My dresses have been sitting in my closet as I have been trying to figure out what to do with them," the 37-year-old exclusively told E! News. "I knew I wanted to work with a charity on taking them off my hands, and it felt important to me to turn an unfortunate situation into a positive outcome."

So, Hubbard partnered with KleinfeldAgain.com—a virtual resale marketplace for brides to sell and purchase pre-loved wedding dresses—to find new homes for her unused garments. And all the proceeds will benefit The Chick Mission, a non-profit organization helping female cancer patients, specifically those facing fertility challenges following treatment.

"Donating the proceeds of the dress sales to a charity that is important to me feels like a true win at the end," the Bravo star shared. "Kleinfeld will be matching the money raised from my dresses. I couldn't have dreamt of a better outcome."

Hubbard, who started dating someone new earlier this year, never considered keeping the dresses for a future wedding.

"I knew right away that I was going to get rid of all things relating to the wedding and my past relationship," the former publicist told E!. "Despite how beautiful and expensive they were, I think it's important to clean out everything that no longer serves you or brings you joy. Although my situation changed, the dresses deserve a second home for someone special to celebrate the ultimate milestone of love."

For one of the dresses, giving it away felt like a no-brainer.

"The very first dress I bought was at a sample sale, and although it was absolutely stunning and fit like a glove, I just got caught up in the moment and didn't relish in it when I got home," she admitted. "You really want to love the dresses you are going to get married in, and unfortunately, you can't return wedding gowns once you purchase them. So, that one was automatically put in the 'need to sell' pile."

As for the other two? One was set for her ceremony and the other she had planned to change into during the reception.

"Both were stunning in their own individual ways," she explained. "Since the wedding was set in Mexico, I wanted the dresses to fit the location. The strapless, floral, lace embroidered Berta dress was perfect for a beach ceremony. The embellished Pnina dress was so sparkly that I stood in awe of it, silent for five minutes straight when I first tried it on. It has an incredible 'wow' factor that no one can deny on the dance floor."

Fans can check out Hubbard's dresses on KleinfeldAgain.com now. And binge Summer House any time on Peacock.

Keep reading to relive Hubbard and Radke's romance before their heartbreaking breakup.

Before going public, Carl and Lindsay attended costars Kyle Cooke and Amanda Batula's September 2021 wedding as each others' dates.

After being friends and costars for years, Carl Radke and Lindsay Hubbard confirmed they were officially a couple at the start of 2022.

Carl got down on one knee and proposed to Lindsay in August 2022 in Southampton while filming season seven of Summer House.

The Bravolebrities enjoyed a romantic vacation in Italy. "One of the most beautiful places I've ever visited! And breathtaking (literally)," he shared on Instagram. "Finally getting through our travel photos with so many highlights but hiking through Cinque Terre was incredible. Bellisimo! "

Carl and Lindsay rang in Christmas 2022 surrounded by familymembers.

Carl and Lindsay opened up about planning their Mexico wedding in February 2023.

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

Lindsay also confirmed plans to film the nuptials for season eight of the show. "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."

The duo lets loose with their Summer House costars in Montauk in April 2023.

Carl and Lindsay attend a friends wedding in Florida.

The duo attend the Palm Tree Music Festival in New York with fellow Summer House couple Kory Keefer and Sam Feher.

Carl and Lindsay are all smiles while celebrating summer.

In honor of Andy Cohen's birthday, Carl shared a tribute to the Bravo bigwig.

The lovebirds celebrated Lindsay's bridal shower in NYC surrounded by their costars, including Danielle Olivera, Amanda Batula, Ciara Miller, Gabby Prescod and Samantha Feher. 

Less than three months before they were supposed to say "I do," news of Carl and Lindsay's breakup came to light in August 2023.

Exactly two weeks after the split news came to light, Lindsay broke her silence and revealed she's "heartbroken" and humiliated" with how Carl ended things.

"My trust has been betrayed, and coming to terms with that has been difficult for me," she wrote on Instagram Sept. 14. "This was not my decision, and I do not agree with quitting a relationship (at this level) without trying everything possible first. I have spent the last couple of weeks finding my own closure and peace. I am forever grateful to my best friends who have not left my side, and have been picking up the pieces of my heart and life every day from the fallout."

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

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