Reality TV stars Hayden Campbell and Jamie Johns say their relationship took such a hammering on The Block they've called it quits.

The pair, who competed in the latest series of TV3 home renovation show The Block NZ, tell a local gossip mag they called off their engagement shortly after wrapping the show.

The pair tell Woman's Day competing together taught them that they're better as friends than as a couple and they've called off their Rarotongan wedding plans.

Jamie and Hayden during their time on The Block NZ: Villa Wars.
Jamie and Hayden during their time on The Block NZ: Villa Wars.

"Before The Block, we were a love-drunk engaged couple ready to take over the world, but the show took some of the intoxication away," Campbell tells the magazine.

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"With all those challenges we started to learn the very complicated nuts and bolts about each other. We were each other's biggest support, but in that process, we started to grow closer together as best friends and not as close as a couple."

The duo sold their renovated Sandringham home for $1,335,000 at Villa Wars' live finale in December, giving them a profit of $160,000 - placing them second equal alongside Cat and Jeremy.

Brooke and Mitch won with profit of $190,000, plus winnings of $100,000. Sisters Sarah and Minanne took home $123,000.

Despite the break-up, the pair say there's no drama: they remain close friends and are running a new business specialising in social media together.

But they've given up their North Shore rental together, with Johns moving in with relatives, while Campbell lives with his rugby buddies.

They hope they can be role models for "happy" break-ups, but Johns admits the first few days of being apart from Campbell were tough.

"You spend all your time with someone, then suddenly that person isn't around anymore ... Something just changed between us, but change can be a good thing."

Campbell proposed to Johns in Rarotonga in 2014 after four years of dating. They met in an Auckland nightclub.

He says The Block played a "a positive part" in the pair breaking up.

- nzherald.co.nz