Dorothy Cotton never publicly spoke about her intimate relationship with King. But no woman – not even King's wife – was closer to the civil rights icon during the last years of his life.
New research finds that people tend to prefer a specific personality type across partners - and its usually one that resembles their own.
Clingy behaviour can be narcissistic, too.
The show's memorable bromances remind viewers that building lasting friendships is just as important as finding love.
The US divorce rate has fallen steadily over the last 30 or 40 years. It's likely because young adults are taking more time to decide to marry.
Simply put, being in a relationship can be complex - but if there's one secret to a happy one, it's communication.
Married at First Sight is meant to be about finding love. But relationship science suggests the experiment is actually a perfect storm of factors that predict relationship breakdown.
The concept of common law marriage is actually quite recent. While legally erroneous, a widespread belief in this myth has served a social purpose.
If you're having issues with your partner, one of you might need a nice dose of humility.
Even when everything's going great in your relationship, you likely harbor some ambivalence toward your partner deep down. Psychology research suggests it's not just OK, but normal.
On social media, people increasingly feel the need to document every event and incident in their lives in public. What does that mean for romantic love?
A cold, logical list of attributes sought in a partner is cast aside by the hot emotions that come up in real life. A psychology researcher explains how this 'hot-cold empathy gap' works in dating.
It might be human nature to undervalue what's chugging along doing fine while imagining there's a mythical 'best' partner out there somewhere. A psychology researcher has advice.
Will your marriage be better if you and your partner are genetically compatible? Is there any evidence that certain genes make someone a better or worse partner? And if so, which genes should we test?
Developments in technologies like robotics and virtual reality are opening new possibilities for sexual experiences.
Trying to optimize the search for love can be naive. Using statistics and measurements isn't necessarily the best way to find a human partner.
Online lies can often be easy to detect, by searching for images and phone numbers and exploring social media profiles. Some people lie anyway – and countless others take the bait.
The problems from a disappointing gift don't end once you've awkwardly thanked the giver and tossed the wrapping paper.
Forgiveness isn't about minimising or forgetting the pain we feel. It's about letting go of our feelings of resentment and revenge.
Singles can face mistaken stereotypes and value judgments that they are less happy, or lonelier. For many, being single is simply a relationship preference or even an orientation.