A source close to the couple explains that it was a "pandemic romance" and ended earlier this month.
Dan lived at her Vancouver Island compound before they got together and is now moving out, per the source. Meanwhile, the Barb Wire star is spending time with her adult sons Brandon Lee, 25, and Dylan Lee, 24, in Malibu.
"When you live with someone and spend all this time with them, for the better part of two years, you get to really know them inside and out, for better and for worse," the insider tells E! News. "There was no straw that broke the camel's back. He is not the man she hoped he was."
The source says that Pamela sometimes "loves hard and fast," but it didn't work out this time.
In early 2021, a separate source connected to the couple told E! News, "Pamela is over the moon and feels more at home than ever before. This is really such a full circle moment and return to her roots. They are actually both natives to Vancouver Island."
"They are splitting their time between Malibu and her family home in Vancouver," the second insider continued. "Spending time during quarantine has been cathartic for them both."
Pamela and Dan's nuptials marked her fifth marriage and ninth wedding ceremony.
The model's first marriage was to musician Tommy Lee in 1995. The stars welcomed their two sons before calling it quits in 1998. Years later, in 2006, Pamela married singer Kid Rock, but she filed for divorce months later. In 2007, Pamela tied the knot with producer Rick Salomon. However, she later requested to annul the marriage in early 2008. The duo went on to reconcile in 2013 and remarried in 2014 but after a series of splits, Pamela and Rick were granted a divorce in 2015.
As for how Pamela's inner circle, including her and Tommy's sons, felt about her marriage to Dan, the source told E! News in 2021 that her boys "couldn't be happier and support their mom no matter what."
The insider also noted, "Her friends think Dan is the nicest man she's ever been with."
As Pamela embarks on a new chapter in her personal life, and ahead of Hulu's Pam & Tommy series, take a look back at her relationship history.