"[Hockey] has kind of been a new obsession," Duff told PEOPLE at Monday night's premiere of her new film, War, Inc., at the Cadillac Lounge at Tenjune. "When I'm in New York, I'm going to hockey games a lot."
And Comrie returns the favor.
"He sits through days of press, of me doing interviews, like one after another after another, and doesn't complain about it," said Duff (who stars alongside John Cusack and Marisa Tomei in the offbeat political satire). "He was a good sport today."
The 27-year-old Comrie also joined Duff – wearing a black Dolce & Gabbana dress and Christian Louboutin pumps – at her premiere, part of the Tribeca Film Festival.
"It's fun to get all dressed up," said the 20-year-old. "I feel like I haven't done it in a long time."
After the screening, the two chatted with moviegoers before heading over to Meatpacking District hotspot Tenjune for the after-party.
The too-cute twosome held court in the VIP area with Duff's sister Haylie. But they only had eyes for each other, whispering and sharing brief kisses all evening.