The most recent blowout disagreement between the coparents — who have been married since 2006 — occurred after McDermott reportedly went missing for two days, which sparked a separate argument.
When the 54-year-old returned, he allegedly told Spelling he was planning on suing her for alimony and child support. The former couple share five children: Liam, 14, Stella, 13, Hattie, 9, Finn, 9, and Beau, 4.
An Us Weekly insider said the Beverly Hills, 90210 alum pointed out that she and McDermott have a prenup that prevents the handsome hunk from getting money if they divorce. However, the blonde babe "recently learned that McDermott could still sue her for child support if they split," and “went ballistic” when she found out, claimed the source.
Spelling, 48 — whose relationship has been making headlines for months after she revealed the duo no longer sleep in the same room — was seen last week in Los Angeles having a meltdown outside an attorney's office. She was holding a notepad at the time on which “custody,” “support” and “assets” were written, OK! reported.
It looks like Spelling and McDermott aren't going to be reconciling anytime soon, as the Us Weekly source spilled that the mother-of-five "wants a divorce," but feels "trapped right now" in their marriage. The Spelling It Like It Is author is also apparently "pissed" at her attorney over McDermott's right to sue for child support.
While she's apparently "miserable" with McDermott, the source confessed Spelling remains married to the actor "for the kids."
Despite what's going on between the two behind closed doors, Spelling and McDermott took their kiddos to Disneyland last week, as they seem to be keeping the piece in front of their children. Their kids “have no idea what’s going on," insisted the source. Meanwhile, neither Spelling — who "sucked it up" for the family's outing, per the source — nor McDermott wore their wedding band at the Happiest Place on Earth.
The source also pointed out “Money is an issue and it’s always been an issue" for the estranged couple, noting it's just another reason the actress "feels trapped."
OK! recently reported McDermott wanted out of their marriage after he returned from shooting a film in Canada earlier this year. However, when McDermott came home, he was met with "bills that had piled up. And a lot of those bills are in part because they have so many pets."
While their issues don't only stem from the fact that pets are expensive, the source noted it also causes "a huge mess. It’s just another thing they fight about." The source candidly declared: "Right now divorce isn't on the horizon because they can't swing it financially. They are in a living nightmare."
Meanwhile, it looks like Spelling and McDermott aren't the only ones who want their relationship to be over. The BH90210 alum's "friends are surprised [a divorce] didn't happen years ago," another source recently spilled, adding: "No one is a fan of [Dean]."