Sources say Doug, 53, is was left "heartbroken and angry" and "devastated" when he was forced to pack his bags.
"I'm not sure they'll be able to recover from this," a source said of the couple, who married in Las Vegas in May 2011 when she was just 16.
"Doug's world has been turned upside down, but for Courtney, it's far from that. She is embracing singledom. It's clear she has finally emerged to be able to call all the shots."
RadarOnline.com broke the news: Celebrity Big Brother alumna D Stodden, 19, separated from her husband and last Thursday night, threw a Halloween party at their rented home, but Doug was conspicuously not there.
"She is branching out and doing her own thing and Doug is getting left behind," a source dished.