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Cooper Flagg and Arianna Roberson Go Public With Relationship

The low-key posts suggest a planned reveal after his rookie season.

Overview

  • Arianna Roberson posted TikTok videos from a Turks & Caicos trip, and Cooper Flagg shared an Instagram photo of them kissing, confirming they are dating.
  • Speculation had built for weeks after Roberson sat with Flagg’s parents at his Rookie of the Year event and appeared at an April 29 Mavericks press conference.
  • Reports indicate the pair kept their relationship private during Flagg’s first NBA season and chose an offseason social-media reveal.
  • Both athletes share Duke roots from the 2024–25 season, when he starred for the men’s team and she joined the women’s program as a five-star recruit.
  • Public interest has been high as Flagg, the No. 1 pick in 2025, won Rookie of the Year with about 21 points, 6.7 rebounds and 4.5 assists per game, while Roberson returned from a knee injury to average about 8 points and 5.7 rebounds for Duke.