1. Myth: Happy relationships are always perfect. Fact: No relationship is perfect. All couples face difficulties and conflicts. True happiness in a relationship lies in the ability to overcome obstacles together.

2. Myth: Happy relationships don't require effort. Fact: Good relationships require constant work and investment. This includes communication, compromise, support and respect for each other.

3. Myth: A happy relationship solves all problems. Fact: Even the happiest couples face problems. It is important not to look for the perfect solution for every problem, but to learn to cope with them together.

4. Myth: Happy relationships depend on external circumstances. Fact: Happiness in a relationship depends on our attitude towards it, not on external factors. It is our attitude, our communication and our ability to forgive that makes our relationships happy and successful.

5. Myth: Happy relationships happen instantly. Fact: Good relationships take time and effort to develop. They are built on a foundation of trust, respect and mutual understanding that develops over time.

6. Myth: Happy relationships do not require conflict. Fact: Conflict in relationships is inevitable and even beneficial if it is seen as an opportunity for growth and improvement in the relationship.

7. Myth: Happy relationships are determined by external manifestations. Fact: True happiness in a relationship lies in the depth of our connection, respect and love for each other, not in external displays.

As a result, by understanding the myths about happy relationships, we can come to the realization that the true essence of a successful relationship lies in respect, compromise, love and constant work on ourselves and our relationships.