They split just months ago.
But it seems Avril Lavigne and Deryck Whibley could already be back together.
Especially if her reaction to our questions at the Alice In Wonderland premiere are anything to go by.
Sky Showbiz chatted to Avril on the green carpet at last night's premiere.
The singer was accompanied by her estranged husband Deryck - though at first no-one noticed him loitering in the background.
When we asked Avril about recent rumours she's dating The Hills star Brody Jenner, Avril promptly turned on her heel and walked off.
She clearly wasn't too happy talking about another man in Deryck's presence.
We caught the whole exchange on camera - watch the video below and you can see Deryck just over Avril's shoulder.
The sound quality at last night's rain-sodden event isn't great, but we thought it was too good not to share.
The couple were later snapped leaving the after-party by car together.
Avril filed for divorce from Deryck in October, just a month after they officially announced their split.
But for a couple who have separated, they sure are on good terms...