In response to high rates of affairs in Spain, a Spanish bed company has developed a cheat-detecting mattress .

OPINION: Relationship expert Jill Goldson explains what's behind the drive of a people-pleaser.

A study into break-ups caused by infidelity found that the lessons learned helped women pick a better partner in the long run.

In a feeble attempt to hit out at her partner's ex girlfriend, a woman has posted what many are calling a nausea-inducing note on social media.

Only two days ago Moses Atigi asked his partner Chanel Whareumu to be his wife. Today the pair were presented as Mr and Mrs Atigi for the first time.

The link between the hit series and porn websites.

On the program today - The police hunt for a young teenager they believe is responsible for a series of sex attacks in the Onehunga area and we have uncovered previously unseen footage of the Chiefs scrum controversy is it foul play or fair injury.

A woman will have been engaged for just 48 hours by the time she heads down the aisle today.

Whitney Wolfe is changing the way we date with her new app - you can even find friends on it.

For couples who share a bed, scientists say the secret to a good sleep is all in the duvet.

A couple were shocked to learn their wedding invite had been passed on to anti-gay protesters.

Gonorrhoea is at risk of becoming an untreatable disease.

Approaching a member of the opposite sex can be daunting for even the most brazen of characters, never mind those who struggle with social awkwardness.

Embarking on a new relationship is fraught with uncertainties at the best of times. Add children into the mix, writes Michelle Duff, and things get even trickier.

COMMENT: For the past 10 years, my wife has felt vaguely cheated by the vasectomy I had in 2005, writes Neil Lyndon.

Society is gradually shifting towards gender equality. Yet most of us still carry a badge of differential gender roles that is intimately tied up in our identity: our names.

This age is when we tend to have the most people in our real-life social networks.

OPINION: We've all been told to focus on the positive, not to indulge in negative thinking. Jill Goldson explains why this is the wrong approach when it comes to dealing with fear.

A condom company has launched a series of bad taste ads featuring sexual diseases as Tinder profiles.

A doctor debunks the most common misinformation about taking the pill.

COMMENT: Relationship expert Jill Goldson reveals why the very things you loved about someone may be becoming the things that irritate you.

Let's talk about ghosts. One of the most infuriating things in dating these days is when the person you're seeing just disappears.

Why we're secretly attracted to our parents' lookalikes.

These are some of questions about relationships sociologist Michael Rosenfeld, of Stanford University, has been asking as part of a longitudinal study.

Recruited for a wedding party? One woman shares her requests to remain sane.