Stop us if you've heard this before: Shanna Moakler and Travis Barker have broken up.
The couple that makes Jason Wahler and Lauren Conrad seem stable are over for good finally, a source tells People magazine.
"About a month ago, they separated again," the celebrity news insider said. "She moved out. As far as she's concerned, it's over. She loves him, but it's one of those relationships where they keep trying to make it work but it doesn't."
Moakler, a former beauty pageant winner just like Amy Polumbo, is "very upset. She gave this marriage her all. She really loves him."
No specific reason was given for this split, but these two have been off and on for years. During that time, Shanna has dated Jay Grdina and Travis has kissed Paris Hilton at least once.
Moakler is a former Miss USA who appeared on Dancing with the Stars, and Barker played drums in blink-182.
They have two children together, Alabama Louella, 1, and Landon, 3. Moakler also has a 8-year-old daughter with boxer Oscar De La Hoya.
Does any reader care to wager which pair will get back together first? These two or Kim Porter and Diddy?