Melanie Lynskey still remembers how painful it was to lose Kate Winslet as a friend.

While they formed a very intense bond as teenage co-stars on the set of Heavenly Creatures and would write each other and talked on the phone all the time, as Lynskey previously told TIME , but that relationship ended shortly after production and Lynskey couldnt let it go.

When I lost touch with Kate, it was more heartbreaking than some breakups that Ive had, she said on Thursdays Happy Sad Confused podcast . It was so painful, and it wasnt like anything happened its just she became a gigantic, international movie star.

Winslet certainly did when James Camerons Titanic hit theaters in 1997. Lynskey, who went on to star in other films like Ever After and Detroit Rock City, said Thursday their divergence gradually happened and that Winslet suddenly didnt have a lot of time.

It happens in relationships, added Lynskey. People kind of drift apart, but that was so painful for me.

The Yellowjackets star was admittedly sensitive about such bonds coming to an end but said it got easier to accept as she got older. However, Lynskey still considers Winslet a huge inspiration for how she navigated the body-shaming she experienced after Titanic .