Katy Perry and Russell Brand hadn't spoken about divorce prior to their split.
Although the pair were said to be having "normal couple problems" before the actor-and-comedian filed for divorce on December 30 - just over a year after they first tied the knot - Perry reportedly had no idea Russell was considering ending their marriage for good.
A source said: "Katy and Russell were having normal couple problems. There was no talk of divorce around Thanksgiving. It all happened right before Christmas but no one, not even Katy saw the divorce coming."
While the singer is said to be "devastated" at the marital split, the insider added that there is "zero chance" of the couple rekindling their romance.
Brand recently admitted he found it hard not to "cherish and crave" his wilder days before he met Perry.
In an interview recorded shortly before the couple's split, he said: "I'd do a gig and four or five women would come back.
"There were times when it wasn't all desperate and ugly. There were times when I was this representation of pure libertarianism and sexuality. It's so hard not to cherish them and crave them.
"I know where they ended up. I know where they went, but I became this thing. Women meeting across me. One would leave, another would come. There'd be crossovers. And they had no problem with each other. And it was blissful."
Perry recently moved out of the home she shared with Brand to a temporary house just 5km away.
The Last Friday Night hitmaker is said to have purchased the $1.9 million pad - which comes complete with five bedrooms and five bathrooms - until she finds somewhere more permanent to live.
Despite the initial shock of the divorce, Perry took to Twitter last week to pay tribute to her supporters and reassure them that she has a "happy heart" once again.
"I am so grateful for all the love and support I've had from people around the world. You guys have made my heart happy again."