1. You trust each other

It's not only about the lack of secrets from each other, but also about trust in decision-making. If both partners put the interests of a couple or family first, there is no doubt that whatever decision everyone makes, it will be favorable for everyone. If a person in a healthy relationship is offered a job in another country, he will not give an answer without discussing the situation with a partner. If you can't solve anything or, on the contrary, you're trying to control every detail - it seems that there are problems with trust.
Important and basic trust - in terms of home keys or access to computers. It is not necessary to create one Facebook account for two or scatter passwords from iPhones - after all, everyone has the right to privacy. But still, in an atmosphere of trust, you can safely ask your partner to get something out of your bag or wallet and do not hide the phone in fear that he will see a message on the screen.

2. Mismatch of interests is not a problem

It is not necessary to be together around the clock and dissolve in each other to be a good couple. It's great when there are common interests, but that's not the main thing in a relationship. Of course, in order to spend more time together, you can try to captivate your partner with what you are interested in - or, conversely, try to get involved in his favorite activities.
Nevertheless, it is completely normal if you like different music, different series, and when traveling you prefer to lie on the beach while your partner goes to museums or shops - or vice versa. It is much more important to coincide in views on fundamental issues.

3. You spend time separately

This paragraph complements the previous one: different interests can mean, for example, a different circle of communication. If you are always more interested without a partner, you should think about it. But in a healthy relationship, there is no jealousy or suspicion if someone from time to time spends the evening with his friends, goes on a trip or often goes on business trips. It's one thing to miss each other and rather want to see each other, quite another thing to suffer from suspicions that your partner is cheating on your trips.
Trust and timely communication are key factors in healthy relationships. A disconnected phone can be explained by a dead battery, and the fact that a person does not respond to messages is due to his enthusiastic conversation with friends. In order not to worry in vain, it is worth agreeing that you warn each other about delays or changes in plans, and do not disappear silently.

4. You agree on important issues

At the initial stage of the relationship, many are embarrassed to discuss topics such as, budget, children , religious or ethical values - and in vain, because the further they go, the more they come to the fore. If one person in a couple wants to have children and for some reason he was convinced that the second one too, but it was never discussed - there will be a problem when it turns out that the partner is set up for the childfree format.
It is better to discuss fundamental issues at the beginning of the relationship. Answers to them will help you understand how to perceive these relationships and whether it is worth getting involved in them at all. Perhaps it sounds cynical, but in marriage, where fundamental things are looked at differently, it is likely that someone will be unhappy.

5. Conflicts are resolved by discussion

And once again, communication is very important for a healthy relationship. Not everything always happens cloudless; the conflict can arise both for serious reasons and because of the accumulated irritation. Healthy relationships are not necessarily conflict-free - it is important that the problems that have arisen are discussed, and the conclusions made help the situation not to repeat itself.
If everyone is aware of the value of relationships and wants to continue and develop them, then conflicts will be perceived as moments for reflection, discussion and useful lessons.
Do not accumulate grievances to somehow remember them to each other - explain directly what does not suit you, and decide how to improve the situation.

6. Sex always happens with consent

In healthy relationships, there is no place for violence - physical, emotional, financial or sexual. It is not always easy to realize that relationships are abusive - especially given the attitude to "marital duty" and the belief driven in since childhood that a man cannot be refused. However, if sex happens from time to time against your desire, it is worth thinking about the fact that you are subjected to violence and asking for help.
However, a woman does not always suffer from violence - although this really happens more often. A healthy attitude to sex in a couple is the realization that both do not always want each other at the same time, and the willingness to calmly accept the refusal. If it seems to you that your partner's interest in sex has decreased, it is better to calmly discuss the situation - but the pressure on him in this case will be a manifestation of violence.