The happiest couples tend to be created between those people who have low levels of anger, anxiety, irritability, emotional instability or depression in their personality and high levels of agreeableness, tolerance and conscientiousness.

All of these personality traits we listed are what make a romantic partner better than others. 

1. Low levels of neurotic disorders

This is translated differently as a tendency to experience negative emotions every time or great emotional burdens in any kind of situation. This disorder is associated with depression, being impulsive, hostile, etc.

People who do not suffer from it do not get bored easily, do not hold grudges and free themselves from negative emotions. They are able not to experience everything that happens to them with anxiety and are able to find moments of happiness even in simple things.

2. People who are easy to get along with

Having a partner with such a trait by your side means having a pleasant communication, getting along easily and loving him more and more. Those who are considered arrogant, selfish or angry make things difficult for themselves and their life as a couple. People who know how to listen even in extreme cases of jealousy will know how to communicate anger or what bothers them to their partner. 

3. Being open, extroverted 

Being with an extroverted partner has been shown to give you more satisfaction in a relationship compared to introverts. Extroverts are energized by the company of others and prefer to be around people rather than alone. Introverts, on the other hand, tend to be reserved and find it difficult to communicate with anyone in an environment.

Source: Psychology Today