They've had their ups and downs but in the end it seems Mike and Heidi's romance won't go the distance.
Unlike the other couples who have been spotted out together since filming ended, Heidi and Mike have not been seen together since then.
What's more, Woman's Day is told Mike, 43, has moved on from his 38-year-old bride and is dating Casey Stewart, 26, the daughter of Gina Stewart, aka the 48-year-old "World's Hottest Grandmother."
"Mike and Casey have been spending a lot of time together and she stays at his place on the Gold Coast a lot," a source reveals.
"They're planning to go public after the show, once Mike's commitments finish."
Casey, who works in construction and is a part-time model, has liked a number of Mike's photos on Instagram, except the ones featuring Heidi.
However, we're told Mike is under strict instructions to keep the romance under wraps until the finale airs.
WATCH: Married At First Thought with Mike and Heidi. Post continues...
It comes after Casey's mother Gina was romantically linked to another MAFS star – Dino Hira, after the meditation coach was caught liking a number of the mother-of-four's photos earlier this year.
Gina addressed the rumours at the time saying, "Any girl would be lucky to date a man like Dino."