Various older studies suggested that similarity in personalities was the key to a happy relationship, but newer research is proving otherwise. A recent 2019 study published in the Journal of Research in Personality concluded that personality similarities are not the be-all or end-all of compatibility.

Should you marry someone with the same personality?

To conclude

Ultimately, marrying someone with the same personality type as you helps to ensure harmony, but it's not a complete guarantee against disagreement and arguments. Personality types only take us so far; the rest comes from the bond between a couple and how you are willing to compromise for one another.

Do people tend to marry with similar personalities?

Spouses don't become more alike in their personalities as their marriage progresses, contrary to perceptions. Rather, spouses often seem similar in character because they start out that way, a new study suggests. People tend to pick their partners based on shared personality traits, researchers say.