This might be a case for the Olsen and Olsen Mystery Agency. Mary-Kate Olsen and Sean Avery sparked dating rumors after reuniting in the Hamptons over Memorial Day weekend. The actress-turned-fashion designer and the retired hockey player were photographed stopping by her new The Row store in Amagansett.

Olsen, 37, rocked her go-to oversized clothing, which she wore in her signature layered style. Pairing a caramel-colored jacket atop a long red coat and dark pants, she accessorized her ensemble with scarves, a beanie and sunglasses. Meanwhile, Avery, 44, sported gray sweatpants and a black hoodie, which he donned over a white T-shirt.

He completed his look with sneakers, a backward baseball cap, shades, a cup of coffee and a cigarette. The pair was later seen hanging out with their mutual friend, Bravo honcho Andy Cohen, who was dressed casually. Reps for Olsen and Avery, who were briefly linked in 2007 and have remained friends over the years, did not immediately respond to Page Six’s requests for comment.

The sighting comes three and a half years after the notoriously private “Full House” star finalized her divorce from French banker Olivier Sarkozy. The exes were married from November 2015 until she filed for divorce in April 2020. The duo settled their split in January 2021.

In March, Sarkozy, 55, was snapped enjoying a lunch date with “Real Housewives of New York City” alum Luann de Lesseps. The financier and the reality star dined at NYC’s Le Bilboquet for .