Melanie Lynskeyis reflecting on her tough experience with growing apart from herHeavenly Creaturescostar and once-close friendKate Winslet.
On Thursday’s episode of theHappy Sad Confusedpodcast, theYellowjacketsactress, 45, recalled how Winslet, 47, “set the bar” of acting for her when Lynskey was instructed to watch Winslet’s audition tape for the 1994 movie before the two starred in it together.
They soon became close friends, Lynskey said —and when they “lost touch,“she added, “it was more heartbreaking than some breakups that I’ve had.”
“It was so painful. And it wasn’t like anything happened — it’s just she became a gigantic, international movie star and she didn’t have a lot of time,” the actress continued. “And then, suddenly, she’d be in Los Angeles and not have time when I was living here.”
Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
Melanie Lynskey and Kate Winslet inHeavenly Creatures(1994).Miramax/Courtesy Everett Collection

“It just sort of gradually happened, and it happens in relationships; people kind of drift apart. But that was so painful for me,” Lynskey added.
“I know she’s a very, very confident person, but everyone’s sensitive and she’s very sensitive,” Lynskey said. “Andthe way she was dissectedand talked about … I remember at the time being just so furious on her behalf. Especially because Kate Winslet is now in the world. Kate Winslet is doing movies. And you’re getting to witness that talent. This is an actor who comes along once in a generation. Like, just focus on that!”
Melanie Lynskey; Kate Winslet.Monica Schipper/FilmMagic; Mike Marsland/WireImage

RELATED GALLERY:Celebs You Didn’t Know Were Friends
Her experience growing apart from Winslet was not the only time she experienced something similar — in fact, the New Zealand actress said it “happened a couple of times.”
“I did this movie with this actor, and when we were finished I said, ‘Oh my gosh, I’m just so happy that I met you and we have this friendship,’ " Lynskey recalled.
But the costar didn’t react quite how she hoped, allegedly telling Lynskey, “Yeah, I’m not friends with actors. I don’t stay friends with actors.”
source: people.com