From People Magazine, a future NHL.com celebrity blogger in the making:

Hilary Duff can put away her Hockey for Dummies book. She’s a full-on fan now, thanks to boyfriend Mike Comrie of the New York Islanders.

“[Hockey] has kind of been a new obsession,” Duff told PEOPLE at Monday night’s premiere of her new film, War, Inc. “When I’m in New York, I’m going to hockey games a lot.”

And People isn’t even kidding about the Hockey for Dummies book—apparently she’s been studying hard.

(I know there’s a Mike Comrie joke in here somewhere, but I refuse to take the bait… I’m trying to act more mature these days…)