This may give some insight into their 'conscious uncoupling'.
While of course, there's nothing wrong with being friendly with your ex - especially when you have children with them - describing your ex-husband as being 'like your brother' is a little odd. Especially when you have children with them.
However, that's what Gwyneth Paltrow said about her former husband, Coldplay's Chris Martin. Although Gwyneth is now newly-engaged to Brad Falchuk, she was discussing her relationship and divorce with Martin on on last night's Late Show with Stephen Colbert.
"He’s really like my brother, we’re very familial. It’s nice, it’s great," she said. "‘Divorce is terrible, it was very painful, it was really hard. We really genuinely wanted our kids to be as unscathed as possible.’
She added: ‘We thought if we could really maintain the family even though we weren’t a couple, that was kind of the goal so that’s what we’ve tried to do.’
That may be so, but the 'brother-sister' dynamic may well cause you therapy bills for young Moses and Apple down the line...