JIM COOPER / AP 1 / 10
JIM COOPER / AP 1 / 10

Sonic Youth star Thurston Moore has opened up about the affair that ended his marriage to bandmate Kim Gordon, insisting he's "in a really sweet relationship" with book editor Eva Prinz.

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Sonic Youth have been on an indefinite hiatus since 2011, when news of Gordon and Moore's split hit the headlines.

During an interview with Elle magazine last year, Gordon revealed an affair ended the marriage, stating, "Thurston was carrying on this whole double life with her. He was really like a lost soul."

Now, her ex has told The Fly that he has been living with Prinz in London. He says, "I'm in a really romantic place with Eva; we've kinda been a couple for close to six years. A lot of those years nobody was very aware of it except us. The cat's been out of the bag a while now."

He adds, "I've had some life issues. In your 40s and 50s things can change in ways that upset the order of things that have been established over 25 years-plus of marriage. It's really distressing. You have to work through it, it's very personal and I don't really talk about it so much. It's just something I work through in my own world. I'm involved in a really sweet relationship and it really does make me happy, it truly does."

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Prinz launched the Ecstatic Peace Library with Moore in 2009 and she appears in his latest video.