Phoebe Gates, the 23-year-old daughter of Microsoft co-founder Bill Gates, has officially debuted her new relationship with high school sweetheart Chaz Flynn on social media, marking a fresh chapter after her split from Paul McCartney’s grandson, Arthur Donald. The Instagram post, shared on Monday, December 16, 2025, features the couple dressed elegantly for a formal event, with Gates embracing Flynn as he smiles for the camera, captioned simply with a red heart emoji.
The pair first met as teenagers attending Lakeside High School in Seattle, where they began dating around 2019 before eventually parting ways. Their rekindled romance comes months after Gates confirmed her breakup from Donald, with whom she had been in a relationship since 2023. According to reports, Gates confirmed to People magazine that she and Flynn have known each other since age 15, highlighting a long-standing connection that has now been revived.
Gates had previously hinted at this new relationship during an episode of “The Burnouts” podcast in September 2025, where she co-hosts with business partner Sophia Kianni. She enthusiastically described her partner’s lack of social media presence as “amazing” and “the best thing ever,” noting that it was a new experience for her. This candid revelation added to the anticipation among fans and followers about who she might be dating.
Her previous relationship with Arthur Donald, the grandson of Beatles legend Paul McCartney, was notably private despite their high-profile families. The couple was first linked in October 2023 when Gates posted a photo of them together in Paris, and she later confirmed their status in a blog post after graduating from Stanford University in 2024. They were occasionally seen together at public events, including one with Gates’ mother, Melinda French Gates, but details about their split remain scarce.
The new romance with Flynn signifies a return to Gates’ roots, as they share a history from their formative years in Seattle. Flynn, whose background is less publicized compared to Donald, is described as someone outside the social media spotlight, which Gates appreciates. This dynamic contrasts with her previous relationship, which, while private, involved constant media scrutiny due to their famous families.
As the youngest daughter of one of the world’s wealthiest individuals, Phoebe Gates has carved her own path as an entrepreneur and influencer, founding the brand Phia. Her personal life often attracts attention, blending elements of tech royalty with entertainment circles. This latest development adds another layer to her public narrative, showcasing her journey through young adulthood and relationships in the limelight.
The broader context of celebrity relationships often involves navigating privacy and public interest, and Gates’ approach—teasing details on her podcast before a formal social media announcement—reflects a modern strategy for managing personal news. With both Gates and Flynn coming from affluent backgrounds, their union may draw continued media focus, though Gates has emphasized valuing authenticity and connection over fame.
Looking ahead, it remains to be seen how this relationship will evolve and whether Gates will share more insights publicly. For now, the hard launch on Instagram signals a committed step forward, closing one chapter with McCartney’s grandson and opening another with her high-school sweetheart, much to the delight of her followers and the curiosity of the celebrity news cycle.
