Hilary Swank, who is divorcing actor-husband Chad Lowe, says Lowe's "substance-abuse problem" was partly responsible for the breakup of their marriage, in an interview with Vanity Fair magazine.
"I knew something was happening, but I didn't know what," the Oscar-winning actress tells the magazine in its August issue. "When I found out, it was such a shock because I never thought he'd keep something from me. And yet, on another level, it was a confirmation of something I was feeling that was keeping us from being completely solid."
Swank, 31, says Lowe is "sober now."