His wife Tori Spelling revealed last month that they're not currently sleeping in the same room.
And Dean McDermott added more fuel to rumors that their marriage is on the rocks when he was seen in public without his wedding ring for the first time on Saturday.
The 54-year-old Canadian actor was spotted sans ring as he made a pit stop at a gas station in Los Angeles.
Going solo: Dean McDermott, 54, was seen without his wedding ring as he pumped gas in LA on Saturday. Meanwhile, his wife Tori Spelling took two of their children to see Space Jam: A New Legacy