Married At First Sight stars Jason Engler and KC Osborne have called time on their short-lived romance.

The former couple, who appeared on separate seasons of MAFS but have been romantically linked since May, called it quits only recently - with KC, 32, confirming the news during a Q&A on Instagram on Sunday.

When a fan asked what happened between the pair, she wrote: 'We just don't align with each other. That's that. I'm good. I'm happy.'

Just a few weeks earlier, KC had shared a sweet tribute to Jason, 35, on her Instagram page.

She wrote: 'J...one of the sweetest people I have ever met. That is the truth. Thanks for making me laugh non stop.'

After initially appearing in each other's Instagram stories, romance rumours were sent into overdrive in June when the duo were seen getting cosy together during an appearance at SinCity Nightclub in the Gold Coast.

Jason later shared a photo planting a kiss on KC's head to his Instagram page, captioned: 'You miss 100 of the shots you don’t take.'

They also enjoyed another sweet date together just over two weeks ago, with Jason sharing footage of KC tucking into some food at a Japanese restaurant in Brisbane called The Boom Boom Room.

'You cannot... can you just go away,' she says to him in the clip, shooting the former reality star a coy look. 

Jason rose to fame on the 2021 season of Married At First Sight.

He was paired with TV wife Alana Lister, but the two did not follow through on their relationship after final vows week.

Meanwhile KC appeared on MAFS in 2020, where she was paired with Drew Brauer - the couple ended up splitting after they realised their personal values didn't align.

She went on to date fellow MAFS groom Michael Goonan, but they confirmed their split in an amicable fashion after a dating for a short time last year.