F1 paddock reacts to Charles Leclerc and Alexandra Saint Mleux's engagement

The Formula 1 community has reacted to Charles Leclerc's engagement to his long-term partner, Alexandra Saint Mleux.

The couple announced the news on Sunday, 2 November 2025, with a post on Instagram that has already amassed 6.3 million likes. The announcement quickly drew the attention of those within the F1 paddock and fans. 

While details have been kept private for obvious reasons, the post showed that the couple's beloved long-haired dachshund, Leo, was involved in the proposal with a collar tag engraved with "Dad wants to marry you!" The photos also showed a room full of red roses with rose petals and candles arranged in a heart shape.

Leclerc's former Ferrari team-mate Carlos Sainz commented, "Yesssss," while McLaren's Oscar Piastri wrote, "Congrats!" The Ferrari F1 team posted, "Fantastic news!! Congratulations."

Alpine driver Esteban Ocon commented, "Félicitations à vous deux!" which translates as, "Congratulations to both of you!"

Seven-time champion Lewis Hamilton wrote, "Congratulations to you both."

Some of the other F1 drivers' partners also reacted to the news. Francisca Gomes, who is in a relationship with Alpine's Pierre Gasly, wrote, "Oh my god!!!! SO happy for you guys!!!!!" and Alex Albon's partner and professional golfer Lily Muni He commented, "Congratulations!!" and George Russell's long-term partner Carmen Montero Mundt added, "So happy for you!!"

Adrian Newey's wife, Amanda Newey, also commented: "It makes me want Adrian to propose again, but he would need to step up his game! Congratulations to both of you. I love the dog collar (and the ring)!”

The post made it onto the official Formula 1 account. "Congratulations to Charles and Alexandra on their engagement!"

After rumours linking the two together in early 2023, they made their first public appearance together in July of the same year at Wimbledon. Since then, Saint Mleux has been seen supporting the Monegasque driver during grand prix weekends, with her and Leo being popular additions to the paddock.