Martha was clearly seething after Michael's spoiler, which she later revealed was about TV show Vikings.
"I'm on the final season, and he just told me the ending," she raged.
"It's season five. He has told me the ending and ruined it. Would you get angry, or no? He thought it was a joke," Martha ranted.
When Michael tried to climb into bed with Martha, she screamed "you know where you belong" and "only humans are allowed on the bed".
The couple's argument did not end there, with Martha then asking Michael to leave.
"OK, so I kicked him out for ruining my show - and now he's pretending that his car won't start so he can stay here," she said, as Michael attempted to fix his car.
Martha concluded: "Put a fork in me, I'm done."
Only time will tell if Michael will actually make the move to Sydney with Martha as they announced last week.