Fans have become so concerned the couple may have quietly broken up they began asking questions after Martha shared a shared a video of herself in a bikini on Thursday.
"Where's Michael?" asked one person, but Martha did not respond.
Another concerned fan wrote: "I hope you and Michael are still together, you have so much fun."
While Martha was parading around in her bikini on her Instagram profile, Michael posted a lonely selfie on Thursday, detailing the reasons why he has said goodbye to his teaching job.
"I’ve had the best job in the world and I’ve cherished every moment of the last 7 years helping shape the lives of the kids I’ve taught, but the time has come for me to explore the other areas of health and well-being I can positively impact," he wrote.
Adding: "Stepping away from my full time teaching job was a decision I didn’t make lightly. Every time I think about the kids it tears at my heart."
Suspicions were also raised earlier this week when Michael celebrated his birthday, and again there was no sign of Martha.
One of Martha's followers noticed her absence, commenting on her profile: "How come you weren't with Mr Brunelli for his birthday?"
Have the reality-TV couple finally reached the end of the road in their relationship?
