“This is a woman who became a new mum and a TV star at 42 – and nailed both,” he wrote.
“This is a woman who, through two years of chemotherapy, when she could barely lift her head from the pillow, never complained and never stopped showing courage, grace, compassion and empathy, and never missed a day of filming.”
He added: “Life can be beautiful, and life can be incredibly cruel. But ultimately, life is fleeting, fragile, and tomorrow is promised to no one. If you can do anything to honour Mel, please live life to the full, love your people well, and try not to sweat the small stuff.
“I had 15 wonderful years with my soulmate, and it was the privilege of my life to be by her side. For that, I will be forever thankful.
“Goodbye, my love. My one. Until we meet again.”
Schilling first joined Mafs in her home country of Australia and later on the UK version of the show, which airs on E4. She stepped down from the Australian version last month after 12 seasons.