Infidelity in A Happy Relationships?

Infidelity does not only happen to those who have trouble. But a happy couple in their relationship can also engage in an affair.

Of course this is a thing that people rarely think about with a happy relationship. How can someone cheat on someone they love?

Trying to connect with something.
This is not because he/she is trying to pull away or get away from you. They just want to find something that has been lost inside them. They may be looking for freedom, passion, or something else at all. Although it hurts for you, but his business is looking to a third party not because he is unhappy with you. Sometimes they are embarrassed to admit what they need.

Biological reasons.
The affair happens in many friends. In fact they are willing to sacrifice lives just for an affair. What is the reason they do that? The answer is biology. We have a so-called simple double human reproduction strategy. It means we have an evolutionary need to form a loving and lasting bond.

For men, there is a reason to have another woman means to have more children to continue their offspring. While for a woman, an affair is used as a guarantee when her husband later dies, then she needs another man to protect her.

It just happened.
Everyone is vulnerable to love. So even if the relationship with the couple happy, sometimes they are tempted with others. Therefore, there are people who cheat for no apparent reason. They did it because it just happened.

Source.