Scooter Braun stops by to visit Sydney Sweeney as she works on the set of “The Housemaid’s Secret” in New Jersey.

When it comes to Sydney Sweeney and Scooter Braun, love is winning.

After watching the Knicks beat the Spurs last Saturday to clinch the NBA Championship, Braun gushed about girlfriend Sydney Sweeney — and dropped the L-Word.

“Syd, I love you and your family so much,” Braun, 45, said aboard a private jet ride after the historic victory, in a video shared by pal Steven Rifkind. “You are the greatest good luck charm for a New York Knicks and Jets fan in history.”

The moment was the latest sign the two have gotten serious — despite their 16-year age difference.

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“They’re very happy together,” a source close to the couple told Page Six. “They’re really enjoying each other.”

When they first became involved, after meeting at Jeff Bezos and Lauren Sanchez’s wedding in Italy last June, Braun told friends that Sweeney was too young for anything beyond a summer fling.

But, it quickly became much more. By September, an insider told Page Six that the couple were “game on, full throttle … not a casual relationship.” They added, “He is picky about who he lets in his inner circle. If he is with her, it’s not about what she looks like or celebrity, but means he really likes her.

That same month, the duo were spotted on a date night with Sweeney’s parents at a Halloween event at Universal Studios Hollywood in Los Angeles. By November, they were seen passionately making out in Central Park.

This past April, the pair attended the season 3 premiere of “Euphoria,” in which Sweeney stars as self-destructive hottie Cassie, together. In early May, Sweeney made it Instagram official, sharing photos of her and Braun at the Stagecoach Music Festival.